BibTex format
@article{Rajani:2021:10.2196/27290,
author = {Rajani, N and Mastellos, N and Filippidis, F},
doi = {10.2196/27290},
journal = {JMIR Serious Games},
title = {Impact of gamification on the self-efficacy and motivation to quit of smokers: an observational study of two gamified smoking cessation mobile apps},
url = {http://dx.doi.org/10.2196/27290},
volume = {9},
year = {2021}
}