@inproceedings{STOC-1970-BookGW,
	author        = "Ronald V. Book and Sheila A. Greibach and Ben Wegbreit",
	booktitle     = "{Proceedings of the Second Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800161.805154",
	pages         = "92--99",
	publisher     = "{ACM}",
	title         = "{Tape- and Time-Bounded Turing Acceptors and AFLs: Extended Abstract}",
	year          = 1970,
}