@inproceedings{ECDL-1998-Zamparelli,
	author        = "Roberto Zamparelli",
	booktitle     = "{Proceedings of the Second European Conference on Research and Advanced Technology for Digital Libraries}",
	doi           = "10.1007/3-540-49653-X_38",
	isbn          = "3-540-65101-2",
	pages         = "635--636",
	publisher     = "{Springer}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Internet Publications: Pay-per-Use or Pay-per-Subscription?}",
	volume        = 1513,
	year          = 1998,
}