Visual Requirement Specification In End-User Participation. - Asarnusch Rashid; David Meder; Jan Wiesenberger; Astrid Behm (MERE, 2006)

Bringing Developers and Users closer together: The OpenProposal story. - Asarnusch Rashid; Jan Wiesenberger; David Meder; Jan Baumann (PRIMIUM, 2009)