1. S. Artemov, Logic of proofs: a unified semantics for modality and λ-terms, Technical Report CFIS 98-06, Cornell University, 1998
2. Explicit provability and constructive semantics;Artemov;Bulletin of Symbolic Logic,2001
3. Unified semantics for modality and lambda-terms via proof polynomials;Artemov,2002
4. Kolmogorov and Gödel’s approach to intuitionistic logic: current developments;Artemov;Russian Mathematical Surveys,2004
5. A rehabilitation of Robinson’s unification algorithm;Bidoit;Information Processing,1983