@inproceedings{schneider2015chi,
 author = {Schneider, Hanna and Moser, Kilian and Butz, Andreas and Alt, Florian},
 title = {Understanding the Mechanics of Persuasive System Design: a Mixed-Method Theory-driven Analysis of Freeletics},
 booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems},
 series = {CHI '16},
 year = {2016},
 keywords = {mobile health freeletics, persuasion}
}