Shaoquan Ni, Hongxia Guo,. “Scheduling Optimization Model for Highway Port Network Tractor and Semitrailer Dispatching Considering Time Window under Unbalanced Demand”. Forest Chemicals Review (December 15, 2021): 1129-1153. Accessed July 22, 2024. http://forestchemicalsreview.com/index.php/JFCR/article/view/270.