@inproceedings{OOPSLA-2004-FactorSS,
	author        = "Michael Factor and Assaf Schuster and Konstantin Shagin",
	booktitle     = "{Proceedings of the 19th Conference on Object-Oriented Programming, Systems, Languages and Applications}",
	doi           = "10.1145/1028976.1029000",
	editor        = "John M. Vlissides and Douglas C. Schmidt",
	isbn          = "1-58113-831-8",
	pages         = "288--300",
	publisher     = "{ACM}",
	title         = "{Instrumentation of standard libraries in object-oriented languages: the twin class hierarchy approach}",
	year          = 2004,
}