@inproceedings{ECOOP-1996-KristensenM,
	author        = "Bent Bruun Kristensen and Daniel C. M. May",
	booktitle     = "{Proceedings of the 10th European Conference on Object-Oriented Programming}",
	doi           = "10.1007/BFb0053074",
	editor        = "Pierre Cointe",
	isbn          = "3-540-61439-7",
	pages         = "472--501",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Activities: Abstractions for Collective Behavior}",
	volume        = 1098,
	year          = 1996,
}