Barwise, John, and John Etchemendy.

Turing's World 3.0: An Introduction to Computability Theory. Chicago: University of Chicago Press, 1993. An in-depth explanation of Turning 4896 Tangents machines.

Clute, John. "Bear, Greg." In The Encyclopedia of Science Fiction. Edited by John Clute and Peter Nicholls, et al.

New York: St. Martin's Griffin, 1995, pp. 99-100. An overview of Bear's career, emphasizing the relationship of his writings to the period in which they were written, mostly in the 1980s.

Cohen, Daniel I. A. Introduction to Computer Theory. New York: John Wiley & Sons, 1990 (second edition).

Includes an explanation of Turing's views.

Dewdney, A. K. The New Turing Omnibus. New York: W. H. Freeman, 1993 (revised edition). Turing's views on computation, mathematics, and computers.

Easton, Tom. Analog Science Fiction & Fact 118 (July-August 1998): 227.

Admires Dinosaur Summer.

Gottfried, Ted. Alan Turing: The Architect of the Computer Age. New York: Franklin Watts, 1996. This biography is written specifically...