Howard Foster Arun Mukhija David S. Rosenblum Sebastián Uchitel A Model-Driven Approach to Dynamic and Adaptive Service Brokering Using Modes. 558-564 2008 ICSOC http://dx.doi.org/10.1007/978-3-540-89652-4_46 conf/icsoc/2008 db/conf/icsoc/icsoc2008.html#FosterMRU08