A Short-Form Measure Of Attitude Towards Using A Mobile Information Service. - Mark Ogertschnig; Hans van der Heijden (Bled eConference, 2004)

Effects of Context Relevance and Perceived Risk on User Acceptance of Mobile Information Services. - Hans van der Heijden; Mark Ogertschnig; Lennart van der Gaast (ECIS, 2005)