[@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 = {Copenhagen},
 author = {Schiøtz, A.},
 publisher = {Steenstrupia},
 title = {The Treefrogs of Eastern Africa},
 year = {1975}
}
,@book{596,
 address = {Frankfurt am Main},
 author = {Schiøtz, A.},
 publisher = {Edition Chimaira},
 title = {Treefrogs of Africa},
 year = {1999}
}
,@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}
}
,@article{596,
 author = {Poynton, J.C. and Broadley, D.G.},
 journal = {Annals of the Natal Museum},
 pages = {161--229},
 title = {Amphibia Zambesiaca. 3. Rhacophoridae and Hyperoliidae},
 volume = {28},
 year = {1987}
}
,@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{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 = {Lambiris, A.J.L.},
 journal = {Museo Regionale di Scienze Naturali Torino, Monografia},
 pages = {1--247},
 title = {The frogs of Zimbabwe},
 volume = {10},
 year = {1989}
}
,@book{54649,
 address = {Frankfurt am Main},
 author = {Channing, A. and Howell, K.M.},
 publisher = {Edition Chimaira},
 title = {Amphibians of East Africa},
 year = {2006}
}
,@article{54649,
 author = {Poynton, J.C.},
 journal = {Senckenbergiana Biologica},
 pages = {193--225},
 title = {Amphibia of the Nyasa-Luangwa region of Africa},
 volume = {45},
 year = {1964}
}
,@book{54659,
 address = {Albany},
 author = {Stewart, M.M.},
 publisher = {State University of New York Press},
 title = {Amphibians of Malawi},
 year = {1967}
}
,@book{54659,
 author = {Harper, E. and Vonesh, J.R.},
 publisher = {http://www.zoo.ufl.edu/voneshjr/Harper%20&%20Vonesh%20-%20Amphibian%20Guide.pdf},
 title = {Field Guide to the Amphibians of the East Usambara Mountains. Preliminary Draft},
 year = {2003}
}
,@article{54659,
 author = {Stevens, R.A.},
 journal = {Arnoldia Rhodesia},
 pages = {1--22},
 title = {An annotated checklist of the amphibians and reptiles known to occur in south-eastern Malawi},
 volume = {6},
 year = {1974}
}
,@article{54659,
 author = {Poynton, J.C.},
 journal = {Systematics and Biodiversity},
 pages = {117--126},
 title = {Altitudinal species turnover in southern Tanzania shown by anurans: some zoogeographical considerations},
 volume = {1},
 year = {2003}
}
,@article{54659,
 author = {Poynton, J.C.},
 journal = {Memoirs de Instituto de Investigação Científica de Moçambique Ser. A. Ciencas B},
 pages = {13--34},
 title = {Amphibia of northern Mozambique},
 volume = {8},
 year = {1966}
}
,@article{55280,
 author = {Alexander, G.J.},
 journal = {Durban Museum Novitates},
 pages = {1--41},
 title = {Reptiles and amphibians of Durban},
 volume = {15},
 year = {1990}
}
,@article{56217,
 author = {Pallett, J.R. and Passmore, N.I.},
 journal = {Bioacoustics},
 number = {1},
 pages = {13--23},
 title = {The significance of multi-note advertisement calls in a reed frog, Hyperolius tuberlinguis},
 year = {1988}
}
,]