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Special issue - Fuzzy Data Envelopment Analysis: Recent Developments and Applications

Dynamic fuzzy data envelopment analysis models: Case of bus transport performance assessment

Received: 30 September 2016 / Revised: 30 June 2017 / Accepted: 07 September 2017
DOI: https://doi.org/10.1051/ro/2017064

Fuzzy integer-valued data envelopment analysis

Received: 08 September 2016 / Revised: 29 June 2017 / Accepted: 30 October 2017
DOI: https://doi.org/10.1051/ro/2018015

A novel fuzzy data envelopment analysis based on robust possibilistic programming: possibility, necessity and credibility-based approaches

Received: 28 September 2016 / Revised: 15 December 2017 / Accepted: 23 February 2018
DOI: https://doi.org/10.1051/ro/2018019

Special issue - ROADEF 2017

A genetic algorithm for solving the steel continuous casting problem with inter-sequence dependent setups and dedicated machines

Received: 04 May 2017 / Revised: 29 November 2017 / Accepted: 11 March 2018
DOI: https://doi.org/10.1051/ro/2018023

A Selective Adaptive Large Neighborhood Search Heuristic for the Profitable Tour Problem with Simultaneous Pickup and Delivery services

Received: 30 April 2017 / Revised: 03 January 2018 / Accepted: 11 March 2018
DOI: https://doi.org/10.1051/ro/2018024

Reducing the Bullwhip effect in a supply chain network by application of optimal control theory

Received: 08 March 2017 / Revised: 05 December 2017 / Accepted: 11 March 2018
DOI: https://doi.org/10.1051/ro/2018025

A weak perturbation theory for approximations of invariant measures in M/G/1 model

Received: 02 February 2017 / Revised: 15 December 2017 / Accepted: 27 April 2018
DOI: https://doi.org/10.1051/ro/2018027

ε-efficient solutions in semi-infinite multiobjective optimization

Received: 05 April 2017 / Revised: 23 October 2017 / Accepted: 27 April 2018
DOI: https://doi.org/10.1051/ro/2018028

Hybrid algorithms for the earliness-tardiness single-machine multiple orders per job scheduling problem with a common due date

Received: 31 May 2017 / Revised: 25 January 2018 / Accepted: 27 April 2018
DOI: https://doi.org/10.1051/ro/2018029

ROADEF 2017

Fleet management for autonomous vehicles: Online PDP under special constraints

Received: 30 April 2017 / Revised: 15 March 2018 / Accepted: 30 May 2018
DOI: https://doi.org/10.1051/ro/2018042

An integrated Fuzzy ANP-MOP approach for partner selection problem and order allocation optimization: The case of virtual enterprise configuration

Received: 30 May 2017 / Revised: 20 January 2018 / Accepted: 19 June 2018
DOI: https://doi.org/10.1051/ro/2018047

Solving a Dynamic combinatorial auctions problem by a hybrid metaheuristic based on a fuzzy dominance relation

Received: 16 March 2017 / Revised: 24 March 2018 / Accepted: 19 June 2018
DOI: https://doi.org/10.1051/ro/2018051
Review

a variable neighborhood search algorithm for solving the single machine scheduling problem with periodic maintenance

Received: 30 April 2017 / Revised: 21 May 2018 / Accepted: 27 June 2018
DOI: https://doi.org/10.1051/ro/2018055

A robust possibilistic programming model for water allocation problem

Received: 21 July 2017 / Revised: 28 May 2018 / Accepted: 07 July 2018
DOI: https://doi.org/10.1051/ro/2018058

Two-machine flow shop with synchronized periodic maintenance

Received: 30 May 2017 / Revised: 12 July 2018 / Accepted: 28 July 2018
DOI: https://doi.org/10.1051/ro/2018062

Efficient algorithms under dynamic graphs to solve the Capacitated Arc Routing Problem with feasible sparse graph

Received: 07 May 2017 / Revised: 31 July 2018 / Accepted: 21 September 2018
DOI: https://doi.org/10.1051/ro/2018087

Grasp heuristic for time series compression with piecewise aggregate approximation

Received: 30 April 2017 / Revised: 21 August 2018 / Accepted: 12 October 2018
DOI: https://doi.org/10.1051/ro/2018089

Special issue - Operations Research Applications in Industry

An Extended Approach for Manufacturing Strategy Process base on Organization Performance through Fuzzy QFD

Received: 17 March 2017 / Revised: 17 May 2018 / Accepted: 04 September 2018
DOI: https://doi.org/10.1051/ro/2018065

On the Problem of Minimizing the Cost with Optical Devices in Wavelength Division Multiplexing Optical Networks: complexity analysis, mathematical formulation and improved heuristics

Received: 28 June 2017 / Revised: 09 April 2018 / Accepted: 04 September 2018
DOI: https://doi.org/10.1051/ro/2018072

A new robust possibilistic programming model for reliable supply chain network design: A case study of lead-acid battery supply chain

Received: 26 March 2017 / Revised: 20 April 2018 / Accepted: 04 September 2018
DOI: https://doi.org/10.1051/ro/2018073

Cellular layout design using Tabu search, a case study

Received: 15 August 2017 / Revised: 05 March 2018 / Accepted: 08 September 2018
DOI: https://doi.org/10.1051/ro/2018077

    Fuzzy Data Envelopment Analysis: Recent Developments and Applications

    Fuzzy stochastic data envelopment analysis with application to NATO enlargement problem

    Received: 22 January 2017 / Revised: 04 April 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018075

    Lower and Upper Bounds for the Linear Arrangement Problem on Interval Graphs

    Received: 23 June 2015 / Revised: 16 January 2017 / Accepted: 02 March 2017
    DOI: https://doi.org/10.1051/ro/2017011

    An N-policy discrete-time Geo/G/1 queue with modified multiple server vacations and Bernoulli feedback

    Received: 20 December 2016 / Accepted: 31 March 2017
    DOI: https://doi.org/10.1051/ro/2017027

    Analysis of M/G/1 retrial queues with second optional service and customer balking under two types of Bernoulli vacation schedules

    Received: 06 October 2016 / Revised: 25 February 2017 / Accepted: 21 April 2017
    DOI: https://doi.org/10.1051/ro/2017029

    Impact of vehicle tracking on a routing problem with dynamic travel times

    Received: 01 June 2016 / Revised: 03 April 2017 / Accepted: 21 April 2017
    DOI: https://doi.org/10.1051/ro/2017030

    Use of "e" and "g" operators to a fuzzy production inventory control model for substitute items

    Received: 12 January 2017 / Revised: 03 May 2017 / Accepted: 11 June 2017
    DOI: https://doi.org/10.1051/ro/2017047

    Optimal power consumption control of sensor node based on (N,D)-policy discrete-time queues

    Received: 19 October 2016 / Revised: 19 April 2017 / Accepted: 10 June 2017
    DOI: https://doi.org/10.1051/ro/2017048
    Review

    Multi-Objective and discrete elephants herding optimization algorithm for QoS aware web service composition

    Received: 13 October 2016 / Revised: 10 April 2017 / Accepted: 10 June 2017
    DOI: https://doi.org/10.1051/ro/2017049

    Recycling of lifetime dependent deteriorated products through different supply chains

    Received: 24 August 2016 / Revised: 14 May 2017 / Accepted: 10 June 2017
    DOI: https://doi.org/10.1051/ro/2017051

    An inventory model of a three parameter Weibull distributed deteriorating item with variable demand dependent on price and frequency of advertisement under trade credit

    Received: 19 August 2016 / Revised: 23 May 2017 / Accepted: 10 June 2017
    DOI: https://doi.org/10.1051/ro/2017052

    Nonmonotone conic trust region method with line search technique for bound constrained optimization

    Received: 20 December 2016 / Revised: 12 June 2017 / Accepted: 24 June 2017
    DOI: https://doi.org/10.1051/ro/2017054

    Portfolio selection with robust estimators considering behavioral biases in a causal network

    Received: 25 July 2016 / Revised: 22 June 2017 / Accepted: 03 July 2017
    DOI: https://doi.org/10.1051/ro/2017056

    An adaptive nonmonotone trust region method based on a modified scalar approximation of the Hessian in the successive quadratic subproblems

    Received: 14 January 2017 / Revised: 24 May 2017 / Accepted: 23 July 2017
    DOI: https://doi.org/10.1051/ro/2017057

    A Newton method for capturing Pareto optimal solutions of fuzzy multiobjective optimization problems

    Received: 31 December 2016 / Revised: 28 June 2017 / Accepted: 23 July 2017
    DOI: https://doi.org/10.1051/ro/2017058

    Numerical solution for the performance characteristics of the M/M/C/K retrial queue with negative customers and exponential abandonments by using value extrapolation method

    Received: 22 October 2016 / Revised: 30 May 2017 / Accepted: 23 July 2017
    DOI: https://doi.org/10.1051/ro/2017059

    An exact approach for the r-interdiction median problem with fortification

    Received: 16 June 2016 / Revised: 01 July 2017 / Accepted: 23 July 2017
    DOI: https://doi.org/10.1051/ro/2017060

    Optimal product quality and pricing strategy for a two-period closed-loop supply chain with retailer variable markup

    Received: 24 February 2017 / Revised: 08 August 2017 / Accepted: 07 September 2017
    DOI: https://doi.org/10.1051/ro/2017061

    An optimal inventory model with interaction of lot size, production rate and lead-time in a fuzzy back-order system

    Received: 23 January 2017 / Revised: 21 July 2017 / Accepted: 07 September 2017
    DOI: https://doi.org/10.1051/ro/2017062

    Allocating hubs to nodes for minimizing the hubs processing resources: a case study.

    Received: 28 August 2016 / Revised: 03 March 2017 / Accepted: 07 September 2017
    DOI: https://doi.org/10.1051/ro/2017065

    Robust stock and bond allocation with end-of-horizon effects

    Received: 24 February 2016 / Revised: 16 June 2017 / Accepted: 07 September 2017
    DOI: https://doi.org/10.1051/ro/2017066

    Evaluation of a new decision-aid parameter for job shop scheduling under uncertainties

    Received: 20 July 2016 / Revised: 08 March 2017 / Accepted: 05 October 2017
    DOI: https://doi.org/10.1051/ro/2017073

    Suppliers Selection Problem with Quantity Discounts and Price Changes: a Heuristic Approach

    Received: 18 April 2017 / Revised: 05 October 2017 / Accepted: 08 October 2017
    DOI: https://doi.org/10.1051/ro/2017075

    The support unit location problem to road traffic surveys with multi-stages

    Received: 22 March 2017 / Revised: 10 October 2017 / Accepted: 30 October 2017
    DOI: https://doi.org/10.1051/ro/2017084

    The cycle shop scheduling: Mathematical model, properties and solution algorithms

    Received: 04 February 2017 / Revised: 08 September 2017 / Accepted: 03 November 2017
    DOI: https://doi.org/10.1051/ro/2017086

    Reverse maximum flow problem under the weighted Chebyshev distance

    Received: 09 April 2017 / Revised: 15 November 2017 / Accepted: 30 November 2017
    DOI: https://doi.org/10.1051/ro/2017088

    Performance measurement in data envelopment analysis without slacks: An application to electricity distribution companies

    Received: 10 February 2017 / Revised: 27 June 2017 / Accepted: 14 January 2018
    DOI: https://doi.org/10.1051/ro/2018008

    An integrated inventory model involving discrete setup cost reduction, variable safety factor, selling-price dependent demand, and investment

    Received: 22 August 2017 / Revised: 10 January 2018 / Accepted: 31 January 2018
    DOI: https://doi.org/10.1051/ro/2018009

    A hybrid Markov process-mathematical programming ‎approach for joint location-inventory problem under ‎supply disruptions

    Received: 31 May 2017 / Revised: 17 December 2017 / Accepted: 31 January 2018
    DOI: https://doi.org/10.1051/ro/2018012

    Vendor-buyer integrated production-inventory system for imperfect quality item under trade credit finance and variable setup cost

    Received: 03 January 2017 / Revised: 12 January 2018 / Accepted: 31 January 2018
    DOI: https://doi.org/10.1051/ro/2018014

    A novel robust multivariate regression approach to optimize multiple surfaces

    Received: 08 December 2016 / Revised: 17 December 2017 / Accepted: 23 February 2018
    DOI: https://doi.org/10.1051/ro/2018016

    Bi-Objective Mean-Variance Method Based on Chebyshev Inequality Bounds for Multi-Objective Stochastic Problems

    Received: 08 November 2016 / Revised: 03 February 2018 / Accepted: 23 February 2018
    DOI: https://doi.org/10.1051/ro/2018018

    Strong Karush-Kuhn-Tucker optimality conditions for multiobjective semi-infinite programming via tangential subdifferential

    Received: 08 August 2017 / Revised: 12 February 2018 / Accepted: 01 March 2018
    DOI: https://doi.org/10.1051/ro/2018020

    ABC Analysis of the Customers using Axiomatic Design and Incomplete Rough Set

    Received: 19 November 2017 / Revised: 08 February 2018 / Accepted: 11 March 2018
    DOI: https://doi.org/10.1051/ro/2018022

    Modeling and solution of maximal covering problem considering gradual coverage with variable radius over multi-periods

    Received: 25 November 2016 / Revised: 07 February 2018 / Accepted: 27 April 2018
    DOI: https://doi.org/10.1051/ro/2018026

    Effects of dominance on operation policies in a two-stage supply chain in which market demands follow the Bass diffusion model

    Received: 07 June 2017 / Revised: 14 April 2018 / Accepted: 29 April 2018
    DOI: https://doi.org/10.1051/ro/2018030

    Optimal replenishment and credit policy in EOQ model for deteriorating items under two-levels of trade credit policy when demand depends on both time and credit period involving default risk

    Received: 17 July 2017 / Revised: 04 April 2018 / Accepted: 29 April 2018
    DOI: https://doi.org/10.1051/ro/2018032

    Production-inventory and emission reduction investment decision under carbon cap-and-trade policy

    Received: 08 September 2017 / Revised: 09 February 2018 / Accepted: 27 April 2018
    DOI: https://doi.org/10.1051/ro/2018033

    Single-machine lot scheduling problem for deteriorating items with negative exponential deterioration rate

    Received: 27 September 2017 / Revised: 04 May 2018 / Accepted: 08 May 2018
    DOI: https://doi.org/10.1051/ro/2018037

    Coordinated decision-making on manufacturer's EPQ-based and buyer's period review inventory policies with stochastic price-sensitive demand: A credit option approach

    Received: 30 November 2017 / Revised: 29 April 2018 / Accepted: 21 May 2018
    DOI: https://doi.org/10.1051/ro/2018038

    Optimal dynamic pricing, preservation technology investment and periodic ordering policies for agricultural products

    Received: 30 October 2017 / Revised: 08 May 2018 / Accepted: 30 May 2018
    DOI: https://doi.org/10.1051/ro/2018040

    Influence of controllable lead time, premium price, and unequal shipments under environmental effects in a supply chain management

    Received: 10 June 2017 / Revised: 04 March 2018 / Accepted: 30 May 2018
    DOI: https://doi.org/10.1051/ro/2018041

    Signed double Roman $k$-domination in trees

    Received: 29 September 2017 / Revised: 02 May 2018 / Accepted: 30 May 2018
    DOI: https://doi.org/10.1051/ro/2018043

    Inventory Optimization Model Considering Consumers Shift and Inventory Transshipment in Dual-channel Supply Chain

    Received: 15 October 2017 / Revised: 19 April 2018 / Accepted: 19 June 2018
    DOI: https://doi.org/10.1051/ro/2018045

    A vendor managed inventory on consignment with penalty as a supply chain coordination arrangement

    Received: 10 April 2017 / Revised: 25 March 2018 / Accepted: 19 June 2018
    DOI: https://doi.org/10.1051/ro/2018049

    Mean-variance portfolio selection with an uncertain exit-time in a regime-switching market

    Received: 23 March 2017 / Revised: 02 May 2018 / Accepted: 19 June 2018
    DOI: https://doi.org/10.1051/ro/2018050

    DEA models for two decision makers with conflicts: the principal-agent problem

    Received: 21 November 2016 / Revised: 23 May 2018 / Accepted: 19 June 2018
    DOI: https://doi.org/10.1051/ro/2018052

    Two-period pricing strategies in a two-echelon supply chain with conspicuous consumption

    Received: 24 January 2018 / Revised: 08 June 2018 / Accepted: 27 June 2018
    DOI: https://doi.org/10.1051/ro/2018053

    Some results on the b-chromatic number in complementary prism graphs

    Received: 21 January 2018 / Revised: 31 May 2018 / Accepted: 27 June 2018
    DOI: https://doi.org/10.1051/ro/2018054

    STALLING FOR SOLVING SLOW SERVER PROBLEM

    Received: 19 November 2017 / Revised: 11 June 2018 / Accepted: 07 July 2018
    DOI: https://doi.org/10.1051/ro/2018056

    Analysis of a discrete-time repairable queue with disasters and working breakdowns

    Received: 06 November 2017 / Revised: 14 June 2018 / Accepted: 07 July 2018
    DOI: https://doi.org/10.1051/ro/2018057

    On multi-level multi-objective linear fractional programming problem with interval parameters

    Received: 09 November 2017 / Revised: 06 July 2018 / Accepted: 03 August 2018
    DOI: https://doi.org/10.1051/ro/2018063

    Optimal online algorithms for the portfolio selection problem, bi-directional trading and -search with interrelated prices

    Received: 25 June 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018064

    A three-echelon supply chain model with price and two-level quality dependent demand

    Received: 08 February 2018 / Revised: 14 July 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018066

    Equilibrium and incentives for supervisor-postgraduate collaborations: A game-theoretic approach

    Received: 29 January 2018 / Revised: 22 June 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018067

    A mathematical formulation of time-cost and reliability optimisation for supply chain management in Research-Development projects

    Received: 16 November 2017 / Revised: 30 March 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018068

    A rule-based heuristic algorithm for on-line order batching and scheduling in an order picking warehouse with multiple pickers

    Received: 13 November 2017 / Revised: 24 July 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018069

    Closed form of the response function in FDH technologies: Theory, computation and application

    Received: 02 October 2017 / Revised: 01 July 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018070

    An optimization technique for national income determination model with stability analysis of differential equation in discrete and continuous process under the uncertain environment

    Received: 16 September 2017 / Revised: 23 June 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018071

    On the star forest polytope for trees and cycles

    Received: 01 June 2015 / Revised: 24 June 2018 / Accepted: 04 September 2018
    DOI: https://doi.org/10.1051/ro/2018076

    Analysis of state-dependent discrete-time queue with system disaster

    Received: 26 March 2017 / Revised: 25 January 2018 / Accepted: 08 September 2018
    DOI: https://doi.org/10.1051/ro/2018078

    Second-order sensitivity analysis for parametric equilibrium problems in set-valued optimization

    Received: 02 May 2018 / Revised: 30 July 2018 / Accepted: 19 September 2018
    DOI: https://doi.org/10.1051/ro/2018080

    A Linear Programming Based Approach for Composite-Action Markov Decision Processes

    Received: 12 December 2017 / Revised: 06 July 2018 / Accepted: 19 September 2018
    DOI: https://doi.org/10.1051/ro/2018081

    An Efficient Simplification Method for Point Cloud Based on Salient Regions Detection

    Received: 23 October 2017 / Revised: 30 July 2018 / Accepted: 19 September 2018
    DOI: https://doi.org/10.1051/ro/2018082

    A COMPUTATIONALLY EFFICIENT ALGORITHM TO APPROXIMATE THE PARETO FRONT OF MULTI-OBJECTIVE LINEAR FRACTIONAL PROGRAMMING PROBLEM

    Received: 13 July 2017 / Revised: 14 March 2018 / Accepted: 19 September 2018
    DOI: https://doi.org/10.1051/ro/2018083

    Necessary and sufficient optimality conditions using convexifactors for mathematical programs with equilibrium constraints

    Received: 30 June 2017 / Revised: 18 April 2018 / Accepted: 19 September 2018
    DOI: https://doi.org/10.1051/ro/2018084

    Facet-inducing inequalities with acyclic supports for the caterpillar-packing polytope

    Received: 21 December 2017 / Revised: 11 August 2018 / Accepted: 21 September 2018
    DOI: https://doi.org/10.1051/ro/2018085

    Two phases inventory model with variable cycle length under discount policy

    Received: 16 September 2017 / Revised: 14 August 2018 / Accepted: 27 September 2018
    DOI: https://doi.org/10.1051/ro/2018086

    Cross-brand and cross-channel advertising strategies in a dual-channel supply chain

    Received: 08 February 2018 / Revised: 11 August 2018 / Accepted: 12 October 2018
    DOI: https://doi.org/10.1051/ro/2018091

      On an optimal replenishment policy for inventory models for non-instantaneous deteriorating items with stock dependent demand and partial backlogging

      Received: 05 April 2018 / Revised: 09 September 2018 / Accepted: 12 October 2018
      DOI: https://doi.org/10.1051/ro/2018092

        Two-warehouse inventory model for deteriorating items with partial backlogging and advance payment scheme

        Received: 11 May 2018 / Revised: 16 August 2018 / Accepted: 12 October 2018
        DOI: https://doi.org/10.1051/ro/2018093

        Preemptive multi-skilled resource constrained project scheduling problem with hard / soft interval due dates

        Received: 13 August 2017 / Revised: 25 September 2018 / Accepted: 13 November 2018
        DOI: https://doi.org/10.1051/ro/2018103

          Randomized Control of Arrivals in a finite-buffer GI/M/1 System with Starting Failures

          Received: 10 October 2017 / Revised: 21 September 2018 / Accepted: 13 November 2018
          DOI: https://doi.org/10.1051/ro/2018104

            Optimal Multi-Product Supplier Selection under Stochastic Demand with Service Level and Budget Constraints using Learning Vector Quantization Neural Network

            Received: 15 March 2018 / Revised: 27 August 2018 / Accepted: 20 October 2018
            DOI: https://doi.org/10.1051/ro/2018096

            A PTAS for single-machine scheduling with release dates and job delivery to minimize makespan

            Received: 29 December 2016 / Revised: 11 September 2017 / Accepted: 28 October 2018
            DOI: https://doi.org/10.1051/ro/2018097

            Governmental subsidy policies and supply chain decisions with carbon emission limit and consumer's environmental awareness

            Received: 03 January 2017 / Revised: 10 August 2018 / Accepted: 20 October 2018
            DOI: https://doi.org/10.1051/ro/2018094

            A hybrid algorithm Tabu Search - GRASP for wounded evacuation in disaster response.

            Received: 17 June 2018 / Revised: 06 September 2018 / Accepted: 20 October 2018
            DOI: https://doi.org/10.1051/ro/2018095

            Optimizing vendor-managed inventory systems with limited storage capacity and partial backordering under stochastic demand

            Received: 06 December 2017 / Revised: 25 August 2018 / Accepted: 12 October 2018
            DOI: https://doi.org/10.1051/ro/2018090

            A generalized DEA model for inputs (outputs) estimation under inter-temporal dependence

            Received: 03 February 2018 / Revised: 19 September 2018 / Accepted: 10 November 2018
            DOI: https://doi.org/10.1051/ro/2018100

            Replenishment of imperfect items in an EOQ inventory model with partial backordering

            Received: 18 May 2017 / Revised: 26 October 2018 / Accepted: 10 November 2018
            DOI: https://doi.org/10.1051/ro/2018099

            Inventory and pricing decisions for imperfect quality items with inspection errors, sales returns, and partial backorders under inflation

            Received: 12 April 2018 / Revised: 14 October 2018 / Accepted: 10 November 2018
            DOI: https://doi.org/10.1051/ro/2018102

              A common-weight DEA model for multi-criteria ABC inventory classification with quantitative and qualitative criteria

              Received: 25 November 2017 / Revised: 29 September 2018 / Accepted: 13 November 2018
              DOI: https://doi.org/10.1051/ro/2018105

                Transient and steady-state analysis of a queuing system having customers' impatience with threshold

                Received: 04 May 2018 / Revised: 29 October 2018 / Accepted: 13 November 2018
                DOI: https://doi.org/10.1051/ro/2018106

                Customer relationship management and new product development in designing a robust supply chain

                Received: 08 February 2018 / Revised: 18 October 2018 / Accepted: 13 November 2018
                DOI: https://doi.org/10.1051/ro/2018107

                  DEA based production planning considering technology heterogeneity with undesirable outputs

                  Received: 04 August 2016 / Revised: 18 June 2018 / Accepted: 10 November 2018
                  DOI: https://doi.org/10.1051/ro/2018098

                    Investment for process quality improvement and setup cost reduction in an imperfect production process with warranty policy and shortages

                    Received: 17 March 2018 / Revised: 09 October 2018 / Accepted: 10 November 2018
                    DOI: https://doi.org/10.1051/ro/2018101