Elisa D Mekler, Florian Brühlmann, Klaus Opwis, and Alexandre N Tuch
@inproceedings{mekler2013points,
title = {Do points, levels and leaderboards harm intrinsic motivation? An empirical analysis of common gamification elements},
author = {Mekler, Elisa D and Br{\"u}hlmann, Florian and Opwis, Klaus and Tuch, Alexandre N},
year = {2013},
booktitle = {Proceedings of the First International Conference on gameful design, research, and applications},
pages = {66--73}
}