A fuzzy imperfect production and repair inventory model with time dependent demand, production and repair rates under inflationary conditionsShalini Jain, Sunil Tiwari, Leopoldo Eduardo Cárdenas-Barrón, Ali Akbar Shaikh and Shiv Raj SinghRAIRO-Oper. Res., 52 1 (2018) 217-239DOI: https://doi.org/10.1051/ro/2017070