[@book{596,
 address = {Ithaca and London},
 author = {Channing, A.},
 publisher = {Cornell University Press},
 title = {Amphibians of Central and Southern Africa},
 year = {2001}
}
,@book{596,
 address = {Frankfurt am Main},
 author = {Pickersgill, M.},
 publisher = {Edition Chimaira},
 title = {Frog Search. Results of Expeditions to Southern and Eastern Africa.},
 year = {2007}
}
,@book{596,
 address = {Washington, D.C.},
 author = {Minter, L.R., Burger, M., Harrison, J.A., Braack, H.H., Bishop, P.J. and Knoepfer, D.},
 publisher = {SI/MAB Series No. 9},
 title = {Atlas and Red Data Book of the Frogs of South Africa, Lesotho and Swaziland},
 year = {2004}
}
,@book{596,
 address = {Johannesburg},
 author = {Passmore, N.I. and Carruthers, V.C.},
 publisher = {Southern Book Publishers and Witwatersrand University Press},
 title = {South African Frogs, 2nd Edition},
 year = {1995}
}
,@article{596,
 author = {Lambiris, A.J.L.},
 journal = {Lammergeyer},
 pages = {1--210},
 title = {A review of the amphibians of Natal},
 volume = {39},
 year = {1989}
}
,@electronic{596,
 address = {http://www.iucnredlist.org},
 author = {IUCN},
 title = {IUCN Red List of Threatened Species (ver. 2013.2)},
 year = {2013}
}
,@electronic{596,
 address = {http://research.amnh.org/herpetology/amphibia/index.html},
 author = {Frost, D.R.},
 publisher = {American Museum of Natural History},
 title = {Amphibian Species of the World: an Online Reference. Version 5.6 (9 January 2013). Electronic Database},
 year = {2013}
}
,@book{1301,
 address = {Craighall},
 author = {Wager, V.A.},
 publisher = {Delta Books},
 title = {Frogs of South Africa, 2nd edition},
 year = {1986}
}
,@article{3070,
 author = {Channing, A. and Griffin, M.},
 journal = {Madoqua},
 pages = {101--116},
 title = {An annotated checklist of the frogs of Namibia},
 volume = {18},
 year = {1993}
}
,@article{11700,
 author = {Poynton, J.C.},
 journal = {Annals of the Natal Museum},
 pages = {1--334},
 title = {The amphibia of southern Africa: a faunal study},
 volume = {17},
 year = {1964}
}
,@article{54636,
 author = {Broadley, D.G.},
 journal = {Puku},
 pages = {1--143},
 title = {The reptiles and amphibians of Zambia},
 volume = {6},
 year = {1971}
}
,@article{54636,
 author = {Lambiris, A.J.L.},
 journal = {Museo Regionale di Scienze Naturali Torino, Monografia},
 pages = {1--247},
 title = {The frogs of Zimbabwe},
 volume = {10},
 year = {1989}
}
,@article{54649,
 author = {Largen, M.J.},
 journal = {Tropical Zoology},
 pages = {307--402},
 title = {Catalogue of the amphibians of Ethiopia, including a key for their identification},
 volume = {14},
 year = {2001}
}
,@book{54659,
 address = {Albany},
 author = {Stewart, M.M.},
 publisher = {State University of New York Press},
 title = {Amphibians of Malawi},
 year = {1967}
}
,@article{58066,
 author = {Poynton, J.C. and Broadley, D.G.},
 journal = {Annals of the Natal Museum},
 pages = {115--181},
 title = {Amphibia Zambesiaca. 2. Ranidae},
 volume = {27},
 year = {1985}
}
,@article{58066,
 author = {Channing, A., Brun, C., Burger, M., Febvre, S. and Moyer, D.},
 journal = {African Journal of Herpetology},
 pages = {139--148},
 title = {A new cryptic dainty frog from East Africa (Anura: Ranidae: <i>Cacosternum</i>)},
 volume = {54},
 year = {2005}
}
,@article{58066,
 author = {van de Elzen, P. and van den Elzen, R.},
 journal = {Bonner Zoologische Beiträege},
 number = {28},
 pages = {108--116},
 title = {Untersuchungen zur Chorstruktur Sudwest-Afrikanischer Anuren: Erste Ergebnisse},
 year = {1977}
}
,@article{58066,
 author = {Douglas, R.},
 journal = {Journal of Herpetological Association of Africa},
 number = {37},
 pages = {45},
 title = {Life history notes. Cacosternum boettgeri},
 year = {1970}
}
,]