@inproceedings{SEKE-2002-TortoraSVD,
	author        = "Genoveffa Tortora and Monica Sebillo and Giuliana Vitiello and Pietro D'Ambrosio",
	booktitle     = "{Proceedings of the 14th International Conference on Software Engineering and Knowledge Engineering}",
	doi           = "10.1145/568760.568856",
	isbn          = "1-58113-556-4",
	pages         = "541--547",
	publisher     = "{ACM}",
	title         = "{A multilevel learning management system}",
	year          = 2002,
}