1. Systèmes de transitions finis et sémantique des processus communicants;Arnold,1992
2. M. A. Bednarczyk. Categories of asynchronous systems. PhD thesis, 1988.
3. Galois theories;Borceux,2001
4. On the algebra of cubes;Brown;JPAA,1981
5. G.L. Cattani and V. Sassone. Higher dimensional transition systems. In Eleventh Annual IEEE Symposium on Logic in Computer Science (LICSʼ96), pages 55–62, 1996.