@conference {ziebarth_using_2009,
	title = {Using Data Mining Techniques to Support the Creation of Competence Ontologies.},
	booktitle = {AIED},
	year = {2009},
	note = {00009},
	pages = {223{\textendash}230},
	author = {Sabrina Ziebarth and Nils Malzahn and H. Ulrich Hoppe}
}
