Ivens, Björn SBjörn SIvens0000-0001-8510-5212Van de Vijver, MarkMarkVan de VijverVos, BartBartVos2019-09-192015-09-1420131873-2062https://fis.uni-bamberg.de/handle/uniba/39510engManaging and developing key supplier relationships : An introduction to the special issue, discussion and implicationsarticle