1. Boldi, P., F. Carbone and N. Sabadini: Concurrent automata, prime event structures and universal domains, In: Semantics of Programming Languages and Model Theory, (M. Droste, Y. Gurevich, eds.), Gordon and Breach Publ., OPA Amsterdam, 1993, pp. 89–108.
2. Bracho, F. and M. Droste: From domains to automata with concurrency. In: 20th ICALP, Lecture Notes in Computer Science vol. 700, Springer, 1993, pp. 669–681.
3. Bracho, F. and M. Droste: Labelled domains and automata with concurrency. To appear in Theoretical Computer Science, 1994.
4. Berry, G.: Stable models of typed λ-calculi. In: 5th ICALP, Lecture Notes in Computer Science vol. 62, Springer, 1978, pp. 72–89.
5. Coquand, T.: Categories of embeddings. In: 3rd Annual Symposium on Logic in Computer Science (Y. Gurevich, ed.), IEEE Computer Society, 1988.