@mastersthesis{jl06,
	title = {Concept Learning in Description Logics},
	author = {Jens Lehmann},
	url = {http://www.wv.inf.tu-dresden.de/Publications/Diploma/diplom_lehmann.pdf},
	year = {2006},
	biburl = {http://www.bibsonomy.org/bibtex/2404416832a0f891925f0824950134d32/jens},
	keywords = {concept_learning }
}