@Inproceedings{fensel1991kaelftcm, author = "Dieter Fensel and Dieter Landes and J{\"u}rgen Angele and Rudi Studer", booktitle = "Proceedings of the 6th Knowledge Acquisition for Knowledge-Based Systems Workshop (KAW-91), Banff, Canada, October 6-11, 1991", title = "KARL: An Executable Language For The Conceptual Model", year = "1991", }