@article {Nacke2017,
	title = {The maturing of gamification research},
	journal = {Computers in Human Behavior},
	year = {2017},
	month = {2017},
	keywords = {Motivational design},
	issn = {0747-5632},
	doi = {http://dx.doi.org/10.1016/j.chb.2016.11.062},
	url = {//www.sciencedirect.com/science/article/pii/S0747563216308111},
	author = {Lennart E. Nacke and Deterding, Sebastian}
}
