1. Inductive definitions and analogues of large cardinals;Aczel,1972
2. Foundations of Constructive Mathematics: Metamathematical Studies;Beeson,1985
3. Normalfunktionen und konstruktive Systeme von Ordinalzahlen;Buchholz,1975
4. A language and axioms for explicit mathematics;Feferman,1975
5. Recursion theory and set theory: a marriage of convenience;Feferman,1978