W3C, "Web Services Choreography Requirements," http://www.w3c.org/TR/2004/WD-ws-chor-reqs-20040311/, March 2004.
W3C, "Web Services Choreography Model Overview," http://www.w3c.org/TR/2004/WD-ws-chor-model-20040324/, March 2004.
W. van der Aalst, M. Dumas, A. H. M. ter Hofstede, P. Wohed, "Pattern-Based Analysis of BPML (and WSCI)," FIT Technical Report, FIT-TR-2002-05.
T. Olavsrud, "Will BPEL and WSCI Come Together?" in InternetNews, May 2003, http://www.internetnews.com/dev-news/print.php/2211121.
C. McDonald. "Orchestration, Choreography, and Collaboration," http://java.sun.com/developer/onlineTraining/webcasts/pdf/35plus/cmcdonald2.pdf.
http://www.ebpml.org/ws_-_cdl.htm.