Investitionsgütereinkauf Erfolgreiches Beschaffungsmanagement komplexer Leistungen Hofmann Erik Innbundet / 2011 / Tysk
Capital Equipment Purchasing Optimizing the Total Cost of CapEx Sourcing Hofmann Erik Innbundet / 2012 / Engelsk
Capital Equipment Purchasing Optimizing the Total Cost of CapEx Sourcing Hofmann Erik Heftet / 2014 / Engelsk
