Human Computation, Ph.D. Dissertation. Carnegie Mellon Univ, 2005. ,
Gamification. using game-design elements in non-gaming contexts, Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems, CHI EA '11, 2011. ,
DOI : 10.1145/1979742.1979575
European Commission machine translation and public ad- ministrations. Legivoc conference, 2014. ,
Legivoc -Connecting law in a changing world, Journal of Open Access to Law, vol.1, issue.1, 2013. ,