@inproceedings{KEOD-2012-FreibergP,
	author        = "Martina Freiberg and Frank Puppe",
	booktitle     = "{Proceedings of the Fourth International Conference on Knowledge Engineering and Ontology Development}",
	isbn          = "978-989-8565-30-3",
	pages         = "137--142",
	publisher     = "{SciTePress}",
	title         = "{iTree: Skill-building User-centered Clarification Consultation Interfaces}",
	year          = 2012,
}