ON DIFFERENT FORMULATIONS FOR THE MULTI-PERIOD VEHICLE ROUTING PROBLEM WITH SIMULTANEOUS PICKUP AND DELIVERY. ASEAN Engineering Journal, [S. l.], v. 13, n. 1, p. 27–39, 2023. DOI: 10.11113/aej.v13.17888. Disponível em: https://journals.utm.my/aej/article/view/17888.. Acesso em: 8 oct. 2024.