Stefan Schmid Tim Chart Manolis Sifalakis Andrew Scott Flexible, Dynamic, and Scalable Service Composition for Active Routers. 253-266 2002 conf/iwan/2002 IWAN http://link.springer.de/link/service/series/0558/bibs/2546/25460253.htm db/conf/iwan/iwan2002.html#SchmidCSS02