List of Articles Transportation Open Access Article Abstract Page Full-Text 1 - An Improved Optimization Model for Scheduling of a Multi-Product Tree-Like Pipeline Mehrnoosh Taherkhani 20.1001.1.25885723.2019.11.2.14.5 Open Access Article Abstract Page Full-Text 2 - Presenting a Mathematical Programming Model for Routing and Scheduling of Cross-Dock and Transportation in Green Reverse Logistics Network of COVID-19 Vaccines Pezhman Abbasi Tavallali Mohammadreza Feylizadeh Atefeh Amindoust 20.1001.1.25885723.2021.13.2.3.8