@inproceedings{ECDL-1997-CrespoG,
	author        = "Arturo Crespo and Hector Garcia-Molina",
	booktitle     = "{Proceedings of the First European Conference on Research and Advanced Technology for Digital Libraries}",
	doi           = "10.1007/BFb0026727",
	isbn          = "3-540-63554-8",
	pages         = "147--171",
	publisher     = "{Springer}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Awareness Services for Digital Libraries}",
	volume        = 1324,
	year          = 1997,
}