[@book{612,
 address = {Pretoria},
 author = {Bates, M.F., Branch, W.R., Bauer, A.M., Burger, M., Marais, J., Alexander, G.J. and de Villiers, M.S.},
 publisher = {Suricata 1. South African National Biodiversity Institute},
 title = {Atlas and Red List of the Reptiles of South Africa, Lesotho and Swaziland},
 year = {2014}
}
,@book{2817,
 address = {Cape Town},
 author = {Branch, W.R.},
 publisher = {Struik Publishers},
 title = {Field Guide to Snakes and Other Reptiles of Southern Africa. Second Edition},
 year = {1998}
}
,@article{5336,
 author = {De Waal, S.W.P.},
 journal = {Memoirs of the National Museum of Bloemfontein},
 pages = {1--160},
 title = {The Squamata (Reptilia) of the Orange Free State, South Africa},
 volume = {11},
 year = {1978}
}
,@techreport{5336,
 address = {Pretoria, South Africa},
 author = {Jacobsen, N.H.G.},
 institution = {Chief Directorate of Nature and Environmental Conservation},
 title = {The distribution and conservation status of reptiles and amphibians in the Transvaal. Final Report Project TN 6/4/1/30},
 year = {1989}
}
,@book{10242,
 address = {Parklands, South Africa},
 author = {Broadley, D.G.},
 publisher = {Jonathan Ball and Ad. Donker Publishers},
 title = {FitzSimons' Snakes of Southern Africa},
 year = {1990}
}
,@article{13300462,
 author = {Broadley, D.},
 journal = {Occasional papers of the National Museums and Monuments of Rhodesia, Series B, Natural Sciences},
 pages = {1--44},
 title = {A revision of the African snakes of the genus <i>Psammophylax</i> Fitzinger (Colubridae)},
 volume = {6},
 year = {1977}
}
,]