@article{article4db3cfe1,
title   = {Measuring knowledge acquisition in 3D virtual learning environments},
author = {Nunes, Eunice Pereira dos Santos and Roque, Licínio G and Marques, Fátima de Lourdes dos Santos Nunes},
year = {2016},
doi = {10.1109/MCG.2016.20},
journal   = {IEEE Computer Graphics and Applications}
}