@inproceedings{CCPSD-1991-BrinksmaJO,
	author        = "Ed Brinksma and Bengt Jonsson and Fredrik Orava",
	booktitle     = "{Proceedings of the Fourth International Joint Conference on Theory and Practice of Software Development, Volume 2: Colloquium on Combining Paradigms for Software Development}",
	doi           = "10.1007/3540539816_73",
	isbn          = "3-540-53981-6",
	pages         = "297--312",
	publisher     = "{Springer}",
	title         = "{Refining Interfaces of Communicating Systems}",
	year          = 1991,
}