C. Bauer. European university studies: Series 5, Economics and management Peter Lang, Frankfurt am Main, Berlin, Bern, Bruxelles, New York, Oxford, Wien, (2010)
K. Figl, and C. Bauer. World Conference on Educational Multimedia, Hypermedia and Telecommunications 2008 (ED-MEDIA 2008), page 3701-3710. Chesapeake, VA, USA, AACE, (June 2008)