@inproceedings{FSE-1993-PodgurskiY,
	author        = "Andy Podgurski and Charles Yang",
	booktitle     = "{Proceedings of the First Symposium on Foundations of Software Engineering}",
	doi           = "10.1145/256428.167076",
	editor        = "David Notkin",
	pages         = "169--181",
	publisher     = "{ACM}",
	title         = "{Partition testing, stratified sampling, and cluster analysis}",
	year          = 1993,
}