@inproceedings{JCDL-2004-Janssen,
	author        = "William C. Janssen Jr.",
	booktitle     = "{Proceedings of the Fourth Joint Conference on Digital Libraries}",
	doi           = "10.1109/JCDL.2004.1336128",
	isbn          = "1-58113-832-6",
	pages         = "239--240",
	publisher     = "{ACM}",
	title         = "{Collaborative extensions for the UpLib system}",
	year          = 2004,
}