D. Williams, W. Wüster og B.G. Fry (2006). «The good, the bad and the ugly: Australian snake taxonomists and a history of the taxonomy of Australia's venomous snakes». Toxicon. 48 (7): 919–930. ISSN0041-0101. PMID16999982. doi:10.1016/j.toxicon.2006.07.016.
D. Williams, W. Wüster og B.G. Fry (2006). «The good, the bad and the ugly: Australian snake taxonomists and a history of the taxonomy of Australia's venomous snakes». Toxicon. 48 (7): 919–930. ISSN0041-0101. PMID16999982. doi:10.1016/j.toxicon.2006.07.016.
D. Williams, W. Wüster og B.G. Fry (2006). «The good, the bad and the ugly: Australian snake taxonomists and a history of the taxonomy of Australia's venomous snakes». Toxicon. 48 (7): 919–930. ISSN0041-0101. PMID16999982. doi:10.1016/j.toxicon.2006.07.016.