1. Frege structures and the notions of proposition, truth and set;Aczel,1980
2. Omega can be anything it should not be;Baeten;Indag. Math.,1979
3. Complete restrictions of the intersection type discipline;Van Bakel;Theoret. Comput. Sci.,1992
4. The Lambda Calculus, Its Syntax and Semantics;Barendregt,1984
5. Cours de Lambda-calcul;Berline,1996