@article{Rosser:1984,
	key = "Rosser 1984",
	author = "J. B. Rosser",
	title = "Highlights of the history of the lambda-calculus",
	journal = AHC,
	volume = 6,
	year = 1984,
	pages = "337-349"}

@article{Kleene:1981,
	key = "Kleene 1981",
	author = "S. C. Kleene",
	title = "Origins of recursive function theory",
	journal = AHC,
	volume = 3,
	year = 1981,
	pages = "52-67"}

@article{Campbell-Kelly:1980,
	key = "Campbell-Kelly 1980",
	author = "M. Campbell-Kelly",
	title = "Programming on the {Mark I}:  early programming activity at
the {University} of {Manchester}",
	journal = AHC,
	volume = 2,
	year = 1980,
	pages = "130-168"}

@article{WilliamsF:1975,
	key = "F. Williams 1975",
	author = "F. C. Williams",
	title = "Early computers at {Manchester} {University}",
	journal = REE,
	volume = 45,
	year = 1975,
	pages = "327-331"}

@article{deHeinzelin:1962,
	key = "de Heinzelin 1962",
	author = "Heinzelin, J. de",
	title = "Ishango",
	journal = SA,
	volume = 206,
	year = 1962,
	number = 6,
	month = "June",
	pages = "105-116"}

@article{Brooks&Smith:1987,
	key = "Brooks and Smith 1987",
	author = "A. S. Brooks and C. C. Smith",
	title = "Ishango revisited:  new age determinations and cultural
interpretations",
	journal = "African Archaeological Review",
	volume = 5,
	year = 1987,
	pages = "65-78"}

@article{Brooks.et.al:1995,
	key = "Brooks et al. 1995",
	author = "{Brooks et al.}, A. S.",
	title = "Dating and context of three middle stone age sites with
bone points in the {Upper Semliki Valley, Zaire}",
	journal = "Science",
	volume = 268,
	year = 1995,
	pages = "548-553"}