Michiel A. J. uit het Broek, Albert H. Schrotenboer, Bolor Jargalsaikhan, Kees Jan Roodbergen, Leandro C. Coelho. Asymmetric Multidepot Vehicle Routing Problems: Valid Inequalities and a Branch-and-Cut Algorithm. Operations Research, 69(2):380-409, 2021. [doi]
Abstract is missing.