Leonel Morgado Hugo Paredes Benjamim Fonseca Paulo Martins 0001 Álvaro Almeida Andreas Vilela Bruno Pires Márcio Cardoso Filipe Peixinho Arnaldo Santos 0001 Integrating Virtual Worlds with Learning Management Systems: The MULTIS Approach. 167-172 2016 IUCC-CSS https://doi.org/10.1109/IUCC-CSS.2016.031 https://doi.ieeecomputersociety.org/10.1109/IUCC-CSS.2016.031 conf/css/2016 db/conf/css/css2016.html#MorgadoPFMAVPCP16