@inproceedings{ECDL-2000-BollenR,
	author        = "Johan Bollen and Luis Mateus Rocha",
	booktitle     = "{Proceedings of the Fourth European Conference on Research and Advanced Technology for Digital Libraries}",
	doi           = "10.1007/3-540-45268-0_39",
	isbn          = "3-540-41023-6",
	pages         = "356--359",
	publisher     = "{Springer}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{An Adaptive Systems Approach to the Implementation and Evaluation of Digital Library Recommendation Systems}",
	volume        = 1923,
	year          = 2000,
}