@inproceedings{STOC-1970-BassY,
	author        = "Leonard J. Bass and Paul R. Young",
	booktitle     = "{Proceedings of the Second Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800161.805147",
	pages         = "37--40",
	publisher     = "{ACM}",
	title         = "{Hierarchies Based on Computational Complexity and Irregularities of Class Determining Measured Sets}",
	year          = 1970,
}