@article {Simula.SE.43,
	title = {A Unified Framework for Coupling Measurement in Object-Oriented Systems},
	journal = {IEEE Transactions on Software Engineering},
	volume = {25},
	number = {1},
	year = {1999},
	author = {Briand, Lionel and Daly, J. and W{\"u}st, J.}
}
