Kalleveen, H. van

product storage strategy heuristic location aisle order storage strategy route group midpoint class warehouse length policy order picker midpoint storage strategy picker breakable products route length number research storage locations storage strategies figure midpoint heuristic copyright owner permission management breakable block result procedure ground floor ankor table point mezzanine problem method return hardware layout combination equipment floor order picker returns s-shape travel time shelf racks buffer locations buffer example reproduction owner change situation koster copyright gap heuristic literature middle endpoint product type model travel erasmus university rotterdam roodbergen loop supply chains system conveyor decrease practice ground algorithm order pickers petersen characteristic assumption reduction