Toomey, M. (20 November 2008). "A Significant Achievement"(PDF). The Informatics Letter. Infonomics Pty Ltd. Archived from the original(PDF) on 27 February 2016. Retrieved 23 June 2016.
Toomey, M. (20 November 2008). "A Significant Achievement"(PDF). The Informatics Letter. Infonomics Pty Ltd. Archived from the original(PDF) on 27 February 2016. Retrieved 23 June 2016.