(23-a de marto2010) “Taxonomic imperialism in the battles for Acacia:Identity and science in South Africa and Australia”, Transactions of the Royal Society of South Africa65 (1), p. 60. doi:10.1080/00359191003652066. 83630585.
(1995) “South African Urban History, Racial Segregation and the Unique Case of Cape Town?”, Journal of Southern African Studies21 (1), p. 63–78. doi:10.1080/03057079508708433.