1. Formalizing forcing arguments in subsystems of second-order arithmetic;Avigad;Ann. Pure Appl. Log.,1996
2. Interpreting classical theories in constructive ones;Avigad;J. Symb. Log.,2000
3. Gödel's functional (“Dialectica”) interpretation;Avigad,1999
4. Foundations of Constructive Mathematics;Beeson,1985
5. On the relation between choice and comprehension principles in second order arithmetic;Cantini;J. Symb. Log.,1986