Akhil Sahai Vijay Machiraju Jinsong Ouyang Klaus Wurster Message tracking in SOAP-based Web services. 33-47 2002 NOMS http://dx.doi.org/10.1109/NOMS.2002.1015542 conf/noms/2002 db/conf/noms/noms2002.html#SahaiMOW02