@inproceedings{SAC-2007-RosenkranzH,
	author        = "Christoph Rosenkranz and Roland Holten",
	booktitle     = "{Proceedings of the 22nd Symposium on Applied Computing}",
	doi           = "10.1145/1244002.1244269",
	editor        = "Yookun Cho and Roger L. Wainwright and Hisham Haddad and Sung Y. Shin and Yong Wan Koo",
	isbn          = "1-59593-480-4",
	pages         = "1228--1233",
	publisher     = "{ACM}",
	title         = "{Combining cybernetics and conceptual modeling: the concept of variety in organizational engineering}",
	year          = 2007,
}