A robust optimization model for multi-objective multi-period supply chain planning under uncertainty considering quantity discounts / Erfan Rahimi, Mohammad Mahdi paydar, Iraj Mahdavi, Javid Jouzdani, Amir Arabsheybani

Collaborative transportation planning distinguishing old and new shippers for small-medium enterprise/ Pengfei He, Jing Li, Yiping Jiang, Xin Wang

Heterogeneous distributed clustering by the fuzzy membership and hierarchiacal structure / Jih-Jeng Huang

A hybrid integer grey programming for an integrated problem of project selection and scheduling with interval data / Homa Amirian, Rashed Sahraeian

A comparative analysis of mixed-integer linear formulations for the multi-family capacitated lot-sizing problem / Andrea L. Arias, Ricardo A. Gatica