Baumgartner, RobertUnterhuber, Tobias2019-08-232019-08-232015https://mediarep.org/handle/doc/6048deuCreative Commons Attribution 3.0 Generic070791Mathias Fuchs, Sonia Fizek, Paolo Ruffino, Niklas Schrape (Hg.): Rethinking Gamification10.17192/ep2015.4.404710.25969/mediarep/51392196-4270