Marco Brambilla Stefano Ceri Mario Passamani Alberto Riccio Managing Asynchronous Web Services Interactions. 80-87 2004 conf/icws/2004 ICWS http://doi.ieeecomputersociety.org/10.1109/ICWS.2004.73 db/conf/icws/icws2004.html#BrambillaCPR04