A. S. Troelstra. The theory of choice sequences. Logic, methodology and philosophy of science III, Proceedings of the Third International Congress for Logic, Methodology and Philosophy of Science, Amsterdam 1967, edited by B. van Rootselaar and J. F. Staal, Studies in logic and the foundations of mathematics, North-Holland Publishing Company, Amsterdam1968, pp. 201–223.
1973 ◽
Vol 38
(2)
◽
pp. 332-332