When Life Gives You Lemons: How rating scales affect user activity and frustration in collaborative evaluation processes. - Thomas Wagenknecht; Jan Crommelinck; Timm Teubner; Christof Weinhardt (Wirtschaftsinformatik, 2017)

Ideate. Collaborate. Repeat. A Research Agenda for Idea Generation, Collaboration and Evaluation in Open Innovation. - Thomas Wagenknecht; Jan Crommelinck; Timm Teubner; Christof Weinhardt (Wirtschaftsinformatik, 2017)