Wissen und Lernen in virtuellen Organisationen Konzepte, Praxisbeispiele, Perspektiven Mambrey Peter Heftet / 2003 / Tysk
End-User Development 2nd International Symposium, IS-EUD 2009, Siegen, Germany, March 2-4, 2009, Proceedings Pipek Volkmar Heftet / 2009 / Engelsk
Socioinformatics - The Social Impact of Interactions between Humans and IT Zweig, Katharina Heftet / 2016 / Engelsk
Socioinformatics - The Social Impact of Interactions between Humans and IT Zweig, Katharina Innbundet / 2014 / Engelsk
End-User Development 5th International Symposium, IS-EUD 2015, Madrid, Spain, May 26-29, 2015. Proceedings Díaz, Paloma Heftet / 2015 / Engelsk
