@inproceedings{ECOOP-1987-KristensenMMN,
	author        = "Bent Bruun Kristensen and Ole Lehrmann Madsen and Birger Møller-Pedersen and Kristen Nygaard",
	booktitle     = "{Proceedings of the First European Conference on Object-Oriented Programming}",
	doi           = "10.1007/3-540-47891-4_10",
	editor        = "Jean Bézivin and Jean-Marie Hullot and Pierre Cointe and Henry Lieberman",
	isbn          = "3-540-18353-1",
	pages         = "98--107",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Classification of Actions, or Inheritance also for Methods}",
	volume        = 276,
	year          = 1987,
}