J. Gonzalez-Olalla, und G. Stumme. Semantic Web Mining. Proc. of the Semantic Web Mining Workshop of the 13th Europ. Conf., Seite 90. Helsinki, (August 2002)
S. Hosain, und H. Jamil. Social Semantic Web: Where Web 2.0 Meets Web 3.0, Papers from the 2009 AAAI Spring Symposium, SS-09-08, Seite 53--58. Menlo Park, CA, AAAI Press, (2009)