@inproceedings{STOC-1974-Mehlhorn,
	author        = "Kurt Mehlhorn",
	booktitle     = "{Proceedings of the Sixth Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800119.803890",
	pages         = "96--109",
	publisher     = "{ACM}",
	title         = "{Polynomial and Abstract Subrecursive Classes}",
	year          = 1974,
}