[@book{2817,
 address = {Cape Town},
 author = {Branch, W.R.},
 publisher = {Struik Publishers},
 title = {Field Guide to Snakes and other Reptiles of Southern Africa. Third Edition},
 year = {1998}
}
,@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{44979971,
 author = {Kelly, C.M.R., Barker, N.P., Villet, N.H., Broadley, D.G. and Branch, W.R.},
 journal = {Molecular Phylogenetics and Evolution},
 pages = {1045--1060},
 title = {The snake family Psammophiidae (Reptilia: Serpentes): phylogenetics and species delimitation in the African Sand Snakes (<i>Psammophis</i> Boie, 1825) and allied genera},
 volume = {47},
 year = {2008}
}
,@book{110159014,
 address = {San Diego, San Francisco, New York, Boston, London},
 author = {Spawls, S., Howell, K.M., Drewes, R.C. and Ashe, J.},
 publisher = {Academic Press, Elsevier Science},
 title = {A Field Guide to the Reptiles of East Africa},
 year = {2002}
}
,@article{13300529,
 author = {Largen, M.J. and Rasmussen, J.B.},
 journal = {Tropical Zoology},
 number = {2},
 pages = {313--434},
 title = {Catalogue of the snakes of Ethiopia (Reptilia: Serpentes), including identification keys},
 volume = {6},
 year = {1993}
}
,@techreport{13300529,
 address = {Paris},
 author = {Ineich, I.},
 institution = {Museum Nationale d'Histoire Naturelle},
 title = {Reptiles et amphibians de la République de Djibouti},
 year = {2001}
}
,@book{13300529,
 address = {Frankfurt am Main, Germany},
 author = {Largen, M. and Spawls, S.},
 publisher = {Edition Chimaira},
 title = {The Amphibians and Reptiles of Ethiopia and Eritrea},
 year = {2010}
}
,@article{13300529,
 author = {Parker, H.W.},
 journal = {Zoologische Verhandelingen},
 pages = {1--115},
 title = {The snakes of Somaliland and the Sokotra Islands},
 volume = {6},
 year = {1949}
}
,@article{13300529,
 author = {Loveridge, A.},
 journal = {Journal of the East African Natural History Society},
 pages = {168--198},
 title = {On a second collection of reptiles and amphibians taken in Tanganyika Territory by C.J.P. Ionides, Esq.},
 volume = {22},
 year = {1955}
}
,]