@inproceedings{ESEC-FSE-2003-OhstWK,
	author        = "Dirk Ohst and Michael Welle and Udo Kelter",
	booktitle     = "{Proceedings of the 11th Symposium on Foundations of Software Engineering held jointly with the Ninth European Software Engineering Conference}",
	doi           = "10.1145/940071.940102",
	pages         = "227--236",
	publisher     = "{ACM}",
	title         = "{Differences between versions of UML diagrams}",
	year          = 2003,
}