Bovet, J.Constantin, C.de Werra, D.2006-08-162006-08-162006-08-16199110.1016/0166-218X(91)90009-Lhttps://infoscience.epfl.ch/handle/20.500.14299/233001WOS:A1991EV22000001A convoy scheduling problemtext::journal::journal article::research article