1. The type theoretic interpretation of constructive set theory;Aczel,1978
2. The type theoretic interpretation of constructive set theory: Choice principles;Aczel,1982
3. The type theoretic interpretation of constructive set theory: Inductive definitions;Aczel,1986
4. Peter Aczel, Michael Rathjen, Notes on constructive set theory, Technical Report 40, 2000/2001, Mittag-Leffler Institute, Sweden, 2001
5. Foundations of Constructive Mathematics;Beeson,1985