Hoesel, S. van

problem solution period production algorithm train value transportation section level subplan number network inventory programming station demand model function route facility constraint lot-sizing result capacity instance period t railway lot-sizing problem transportation costs property van hoesel point proof lemma research technique variable hoesel theorem railway station approach / european journal p-coverage problem client planning paper structure envelope production capacities cost functions retailer polynomial coverage problem zio property formulation programming network platform track graph inequality programming algorithm polynomial time production costs chain supply management condition wagelman phase 2 production period supply chain node i manufacturer analysis recursion order journal figure planning horizon