Andrew Hodges. Alan Turing and the Turing machine. The universal Turing machine, A half-century survey, edited by Rolf Herken, Kammerer & Unverzagt, Hamburg and Berlin, and Oxford University Press, Oxford and New York, 1988. pp. 3–15. - Stephen C. Kleene. Turing's analysis of computahility, and major applications of it. The universal Turing machine, A half-century survey, edited by Rolf Herken, Kammerer & Unverzagt, Hamburg and Berlin, and Oxford University Press, Oxford and New York, 1988. pp. 17–54. - Robin Gandy. The confluence of ideas in 1936. The universal Turing machine, A half-century survey, edited by Rolf Herken, Kammerer & Unverzagt, Hamburg and Berlin, and Oxford University Press, Oxford and New York, 1988. pp. 55–111. - Solomon Feferman. Turing in the land of O(z). The universal Turing machine, A half-century survey, edited by Rolf Herken, Kammerer & Unverzagt, Hamburg and Berlin, and Oxford University Press, Oxford and New York, 1988. pp. 113–147. - Martin Davis. Mathematical logic and the origin of modern computers. The universal Turing machine, A half-century survey, edited by Rolf Herken, Kammerer & Unverzagt, Hamburg and Berlin, and Oxford University Press, Oxford and New York, 1988. pp. 149–174.