@inproceedings{Stockinger:2013:SPB:2541831.2541869,
 author = {Stockinger, Tobias and Koelle, Marion and Lindemann, Patrick and Witzani, Lukas and Kranz, Matthias},
 title = {SmartPiggy: A Piggy Bank That Talks to Your Smartphone},
 booktitle = {Proceedings of the 12th International Conference on Mobile and Ubiquitous Multimedia},
 series = {MUM '13},
 year = {2013},
 isbn = {978-1-4503-2648-3},
 location = {Lule\å, Sweden},
 pages = {42:1--42:2},
 articleno = {42},
 numpages = {2},
 url = {http://doi.acm.org/10.1145/2541831.2541869},
 doi = {10.1145/2541831.2541869},
 acmid = {2541869},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {gamification, prototyping, self-control},
}