1. Lecture Notes in Computer Science;W.M.P. Aalst van der,2003
2. Burbeck, S.: The Tao of e-business services (2000), available at: http://www-128.ibm.com/developerworks/library/ws-tao/
3. Lecture Notes in Computer Science;W.M.P. Aalst van der,1997
4. Lecture Notes in Computer Science;J. Dehnert,2001
5. Martens, A.: On Compatibility of Web Services. Petri Net Newsletter 65, 12–20 (2003)