Panos Georgatsos Jason Spencer David Griffin Takis Damilatis Hamid Asgari Jonas Griem George Pavlou Pierrick Morand Provider-Level Service Agreements for Inter-domain QoS Delivery. 368-377 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3266&spage=368 2004 conf/qofis/2004 QofIS db/conf/qofis/qofis2004.html#GeorgatsosSGDAGPM04