1. On the meaning and construction of the rules in Martin-Löf's theory of types;Backhouse,1988
2. Inductively defined types, preliminary version;Coquand,1990
3. Inductive sets and families in Martin-Löf's type theory and their set-theoretic semantics;Dybjer,1991
4. Inductive families;Dybjer,1994
5. Inductive and coinductive types with iteration and recursion;Geuvers,1991