Martí Navarro Elena del Val Noguera Miguel Rebollo Vicente Julián Agent Negotiation Protocols in Time-Bounded Service Composition. 527-534 2009 IDEAL http://dx.doi.org/10.1007/978-3-642-04394-9_64 conf/ideal/2009 db/conf/ideal/ideal2009.html#NavarroNRJ09