Fabien Baligand Didier Le Botlan Thomas Ledoux Pierre Combes A Language for Quality of Service Requirements Specification in Web Services Orchestrations. 38-49 2006 conf/icsoc/2006w ICSOC Workshops http://dx.doi.org/10.1007/978-3-540-75492-3_4 db/conf/icsoc/icsoc2006w.html#BaligandBLC06