@inproceedings{ITiCSE-1999-Holmboe,
	author        = "Christian Holmboe",
	booktitle     = "{Proceedings of the Fourth Conference on Innovation and Technology in Computer Science Education}",
	doi           = "10.1145/305786.305833",
	isbn          = "1-58113-087-2",
	pages         = "17--20",
	publisher     = "{ACM}",
	title         = "{A cognitive framework for knowledge in informatics: the case of object-orientation}",
	year          = 1999,
}