Bekk, M., Eppmann, R., Klein, K., & Völckner, F. (2022). All that glitters is not gold: An investigation into the undesired effects of gamification and how to mitigate them through gamification design. International Journal of Research in Marketing, 39(4), 1059–1081. https://doi.org/10.1016/j.ijresmar.2022.03.002