@inproceedings{JCDL-2002-Soergel,
	author        = "Dagobert Soergel",
	booktitle     = "{Proceedings of the Second Joint Conference on Digital Libraries}",
	doi           = "10.1145/544220.544364",
	isbn          = "1-58113-513-0",
	pages         = "415",
	publisher     = "{ACM}",
	title         = "{Thesauri and ontologies in digital libraries: 1. structure and use in knowledge-based assistance to users}",
	year          = 2002,
}