@inproceedings{STOC-1969-McCreightM,
	author        = "Edward M. McCreight and Albert R. Meyer",
	booktitle     = "{Proceedings of the First Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800169.805423",
	pages         = "79--88",
	publisher     = "{ACM}",
	title         = "{Classes of Computable Functions Defined by Bounds on Computation: Preliminary Report}",
	year          = 1969,
}