@article{CSIS_2016_13_3_a7,
     author = {Jos\'e Carlos Paiva and Jos\'e Paulo Leal and Ricardo Queir\'os},
     title = {Gamification of {Learning} {Activities} with the {Odin} service},
     journal = {Computer Science and Information Systems},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {2016},
     url = {http://geodesic.mathdoc.fr/item/CSIS_2016_13_3_a7/}
}