@inproceedings{HT-2008-BravoVO,
	author        = "Javier Bravo and César Vialardi Sacín and Alvaro Ortigosa",
	booktitle     = "{Proceedings of the 19th Conference on Hypertext and Hypermedia}",
	doi           = "10.1145/1379092.1379134",
	isbn          = "978-1-59593-985-2",
	pages         = "219--220",
	publisher     = "{ACM}",
	title         = "{Asquare: a powerful evaluation tool for adaptive hypermedia course system}",
	year          = 2008,
}