Principles of Intuitionism: Lectures presented at the Summer Conference on Intuitionism and Proof Theory (1968) at SUNY at Buffalo, NY (Lecture Notes in Mathematics, 95)
Proof Theory (Grundlehren der mathematischen Wissenschaften)
Iterated Inductive Definitions and Subsystems of Analysis: Recent Proof-theoretical Studies (Lecture Notes in Mathematics, 897)
Metamathematical Investigation of Intuitionistic Arithmetic and Analysis
ISILC - Proof Theory Symposion: Dedicated to Kurt Schütte on the Occasion of His 65th Birthday. Proceedings of the International Summer Institute and ... 500) (English and German Edition)
Cambridge Summer School in Mathematical Logic: Held in Cambridge /U. K., August 1-21, 1971 (Lecture Notes in Mathematics, 337)
Proof Theory An Introduction
Tableau Systems for First Order Number Theory and Certain Higher Order Theories (Lecture Notes in Mathematics, 447)
A Short Introduction to Intuitionistic Logic
Proof Theory The First Step into Impredicativity