1. Computable Analysis;Aberth,1980
2. The type-theoretic interpretation of constructive set theory;Aczel,1978
3. Foundations of Constructive Mathematics;Beeson,1985
4. Philosophy of Mathematics. Selected Readings,1964
5. P. Bernays. Sur le platonism dans les mathématiques. L'enseignement Mathématique. Volume 34. pp. 52–69, 1935. Reprinted C. Parsons (tr.) On platonism in mathematics. [Benacerraft and Putnam 1964]. pp. 274–286, 1964.