D. Brain, and G. Webb. Proceedings of the Fourth Australian Knowledge Acquisition Workshop (AKAW '99), page 117-128. Sydney, The University of New South Wales, (1999)
D. Brain, and G. Webb. Lecture Notes in Computer Science 2431: Principles of Data Mining and Knowledge Discovery: Proceedings of the Sixth European Conference (PKDD 2002), page 62-73. Berlin/Heidelberg, Springer-Verlag, (2002)
I. Peters, P. Kraker, E. Lex, C. Gumpenberger, and J. Gorraiz. Proceedings of ISSI 2015 Istanbul: 15th International Society of Scientometrics and Informetrics Conference, Istanbul, Turkey, 29 June to 3 July, 2015, page 172--183. Bogaziçi University Printhouse, (2015)