Solution of a tinned iron purchasing problem by Lagrangean relaxation / B. DorhoutAn algorithm for the one-to-all shortest path problem with arbitrary arc lengths / B. DorhoutAn algorithm for the solution of shortest path problems with positive and negative arc lengths / B. Dorhout, M.M.G. HuntingExperiments with some algorithms for the linear assignment problem / B. DorhoutWiskundige programmering / B. Dorhout, J. Kriens, J.Th. van LieshoutWiskundige programmering / B. DorhoutWiskundige programmering / B. DorhoutWiskundige programmering / B. Dorhout