@inproceedings{ECHT-1990-HofmannSL,
	author        = "Martin Hofmann and Uwe Schreiweis and Horst Langendörfer",
	booktitle     = "{Proceedings of the European Conference on Hypertext: Concepts, Systems and Applications}",
	isbn          = "0-521-40517-3",
	pages         = "166--179",
	publisher     = "{Cambridge University Press}",
	series        = "{The Cambridge Series on Electronic Publishing}",
	title         = "{An Integrated Approach of Knowledge Acquisition by the Hypertext System CONCORDE}",
	year          = 1990,
}