1. Wikipedia: Workflow (2006), http://en.wikipedia.org/wiki/Workflow
2. OASIS Open: OASIS web services business process execution language (WSBPEL) TC (2006), http://www.oasis-open.org/committees/tchome.php?wgabbrev=wsbpel
3. Box, D., et al.: Simple object access protocol (SOAP) 1.1. Technical Report 08 May 2000, W3C (2000)
4. Ortiz, C.E.: J2ME technology turns 5 (2004), http://developers.sun.com/techtopics/mobility/j2me/articles/5anniversary.html
5. Hackmann, G., Haitjema, M., Gill, C., Roman, G.C.: Sliver: A BPEL workflow process execution engine for mobile devices. Technical Report WUCSE-06-37, Washington University, Department of Computer Science and Engineering (2006)