@book{stumme97conceptexploration,
	title = {Concept Exploration -- Knowledge Acquisition in Knowledge Systems. },
	address = {Aachen},
	author = {Gerd Stumme},
	publisher = {Shaker},
	url = {http://www.shaker.de/Online-Gesamtkatalog/details.asp?ISBN=3-8265-2930-8},
	year = {1997},
	biburl = {http://www.bibsonomy.org/bibtex/28e9d6d29a5b0764bbf2e18cabe2b8f2e/stumme},
	description = {Dissertation},
	keywords = {1997 acquisition analysis attribute concept conceptual exploration fca formal knowledge myown systems }
}