International journal
-Studying Student Differentiation in Gamified Education: A Long-Term StudyGabriel José Faustino Fonseca Barata and Sandra Gama and Daniel Jorge Viegas Gonçalves and Joaquim Armando Pires Jorge article in Computers and Human Behaviour pp. 1-36, Dec. 2016, Elsevier, [DOI Article link][bibTex]