Usability, playability, and long-term engagement in computer games.

Alessandro Febretti Franca Garzotto Usability, playability, and long-term engagement in computer games. 4063-4068 2009 CHI Extended Abstracts http://doi.acm.org/10.1145/1520340.1520618 conf/chi/2009a db/conf/chi/chi2009a.html#FebrettiG09