Economies of scope in two-stage production systems: A data envelopment analysis approachLeila Zeinalzadeh Ahranjani, Reza Kazemi Matin and Reza Farzipoor SaenRAIRO-Oper. Res., 52 2 (2018) 335-349DOI: https://doi.org/10.1051/ro/2017023
