Der ROPO-Effekt im Online-Reisebuchungsprozess. - Stefan Bensch; Patrick Gugel; Klaus Turowski (HMD Prax. Wirtsch., 2009)

Cost forecast of sheet metal parts using 3D CAD-models in SME. - Patrick Gugel; Holger Schrödl (IRI, 2010)

Towards a Reference Model for the Identification of Strategic Supply Chains for Value Bundles. - Holger Schrödl; Patrick Gugel; Klaus Turowski (HICSS, 2011)