Ramos, I., 		Ramos, D., 		Nascimento, P., 		Gadelha, B., & 		Oliveira, E.
(2016).
 Formation of Groups in Virtual Learning Environments: A Systematic Literature Review.
In <em>Proceedings of the 27th Brazilian Symposium on Computers in Education</em>, (pp. 310-319). Porto Alegre: SBC.
doi:10.5753/cbie.sbie.2016.310