List of Articles Heterogeneous vehicles routing Open Access Article Abstract Page Full-Text 1 - A new mathematical model for the closed-loop supply chains considering pricing for product, a fleet of heterogeneous vehicles, and inventory costs Isa Nakhai Kamalabadi mohammad mohammadnejad Ramin sadeghian Fardin ahmadizar 10.22094/joie.2016.258 20.1001.1.22519904.2017.10.21.4.7