A variable neighborhood search algorithm with constraint relaxation for the two-echelon vehicle routing problem with simultaneous delivery and pickup demands

Ran Liu 0005, Shan Jiang. A variable neighborhood search algorithm with constraint relaxation for the two-echelon vehicle routing problem with simultaneous delivery and pickup demands. Soft Comput., 26(17):8879-8896, 2022. [doi]

Abstract

Abstract is missing.