1. Lecture Notes in Computer Science;L. Acciai,2007
2. Lecture Notes in Computer Science;A.P. Black,2003
3. Lecture Notes in Computer Science;L. Bocchi,2004
4. Lecture Notes in Computer Science;R. Bruni,2002
5. Bruni, R., Melgratti, H., Montanari, U.: Theoretical foundations for compensations in flow composition languages. In: POPL, pp. 209–220. ACM, New York (2005)