@inproceedings{PLILP-1997-AnconaZ,
	author        = "Davide Ancona and Elena Zucca",
	booktitle     = "{Proceedings of the Ninth International Symposium on Programming Languages: Implementations, Logics and Programs}",
	doi           = "10.1007/BFb0033836",
	isbn          = "3-540-63398-7",
	pages         = "47--61",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Overriding Operators in a Mixin-Based Framework}",
	volume        = 1292,
	year          = 1997,
}