@inproceedings{ECOOP-1989-PunW,
	author        = "Winnie W. Y. Pun and Russel L. Winder",
	booktitle     = "{Proceedings of the Third European Conference on Object-Oriented Programming}",
	editor        = "S. Cook",
	isbn          = "0-521-38232-7",
	pages         = "225--240",
	publisher     = "{Cambridge University Press}",
	title         = "{A Design Method for Object-Oriented Programming}",
	year          = 1989,
}