U. Riss. S-BPM ONE - Education and Industrial Developments, volume 284 of Communications in Computer and Information Science, chapter 17, Springer Berlin Heidelberg, Berlin, Heidelberg, (2012)
D. Stenmark. Proceedings of the XXXV Annual Hawaii International Conference on System Sciences (HICSS-02), 7-10 January, IEEE, (2002)Exteneded version available from http://w3.informatik.gu.se/~dixi/.
L. Mcdowell, O. Etzioni, A. Halevy, and H. Levy. WWW '04: Proceedings of the 13th international conference on World Wide Web, page 244--254. New York, NY, USA, ACM Press, (2004)