Lynette Barnard, Reinhardt A. Botha: Proceedings of the 2007 Annual Conference of the South African Institute of Computer Scientists and Information Technologists on IT Research in Developing Countries, SAICSIT 2007, Port Elizabeth, South Africa, October 2-3, 2007. ACM International Conference Proceeding Series 226, ACM 2007, ISBN 978-1-59593-775-9