Media type: E-Article Title: Performance approximation of pick-to-belt orderpicking systems Contributor: de Koster, René Published: Elsevier BV, 1994 Published in: European Journal of Operational Research, 72 (1994) 3, Seite 558-573 Language: English DOI: 10.1016/0377-2217(94)90423-5 ISSN: 0377-2217 Origination: Footnote: