@inproceedings{VS-Games-2013-Morgado,
	author        = "Leonel Morgado",
	booktitle     = "{Proceedings of the Fifth International Conference on Games and Virtual Worlds for Serious Applications}",
	doi           = "10.1109/VS-GAMES.2013.6624245",
	isbn          = "['978-1-4799-0964-3', '978-1-4799-0965-0']",
	pages         = "1--5",
	publisher     = "{IEEE Computer Society}",
	title         = "{Technology Challenges of Virtual Worlds in Education and Training - Research Directions}",
	year          = 2013,
}