@inproceedings{STOC-1977-LynchB,
	author        = "Nancy A. Lynch and Edward K. Blum",
	booktitle     = "{Proceedings of the Ninth Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800105.803413",
	pages         = "228--238",
	publisher     = "{ACM}",
	title         = "{Efficient Reducibility Between Programming Systems: Preliminary Report}",
	year          = 1977,
}