1. [A 77] Aczel, P.: The strength of Martin-Löf's intuitionistic type theory with one universe. In: Miettinen, S., Vaänänen, S. (eds.) Proceedings of Symposia in Mathematical Logic. Oulu 1974, and Helsinki 1975. Report No. 2, University of Helsinki, Department of Philosophy, 1977, 1?32
2. [A 78] Aczel, P.: The type theoretic interpretation of constructive set theory. In: MacIntyre, A., Pacholski, L., Paris, J. (eds.) Logic Colloquium '77. Amsterdam: North-Holland 1978
3. [A 82] Aczel, P.: The type theoretic interpretation of constructive set theory: choice prinicples. In: Troelstra, A.S., van Dalen, D. (eds.) The L.E.J. Brouwer Centenary Symposium. Amsterdam: North-Holland 1982
4. [A 86] Aczel, P.: The type theoretic interpretation of constructive set theory: inductive definitions. In: Marcus, R.B. et al. (eds) Logic, Methodology, and Philosopy of Science VII. Amsterdam: North-Holland 1986
5. [Ba 75] Barwise, J.: Admissible sets and structures. Berlin: Springer 1975