R. C. Cruz, T. C. B. Silva, Marcone J. F. Souza, V. N. Coelho, M. T. Mine, Alexandre Xavier Martins. GENVNS-TS-CL-PR: A heuristic approach for solving the vehicle routing problem with simultaneous pickup and delivery. Electronic Notes in Discrete Mathematics, 39:217-224, 2012. [doi]
Abstract is missing.