Challenge Accepted! - the Impact of Goal Achievement on subsequent User Effort and the Implications of a Goal's Difficulty. - Tobias von Rechenberg; Dominik Gutt (ECIS, 2016)

Goals as Reference Points: Empirical Evidence from a Virtual Reward System. - Tobias von Rechenberg; Dominik Gutt; Dennis Kundisch (Decis. Anal., 2016)

Does the Framing of Progress Towards Virtual Rewards Matter? - Empirical Evidence from an Online Community. - Dennis Kundisch; Tobias von Rechenberg (Bus. Inf. Syst. Eng., 2017)