1. Handbook of Logic in Computer Science, Volume 2: Background: Computational Structures,1992
2. The semantics of reflected proof. In LICS90;Allen,1990
3. Innovations in computational type theory using Nuprl;Allen;Journal of Applied Logic,2006
4. A non-type-theoretic definition of Martin-Lof's types;Allen,1987
5. Lambda calculi with types;Barendregt,1992