Stefano A. Cerri Jean Sallantin Emmanuel Castro Daniele Maraschi Steps towards C+C: A Language for Interactions. 34-48 http://link.springer.de/link/service/series/0558/bibs/1904/19040034.htm 2000 conf/aimsa/2000 AIMSA db/conf/aimsa/aimsa2000.html#CerriSCM00