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	title = {Anuran ecology in relation particularly to oviposition and development out of water},
	journal = {Zoologica Africana},
	volume = {6},
	year = {1971},
	pages = {119{\textendash}132},
	author = {Van Dijk, D.E.}
}
@article {1309,
	title = {Habitats and dispersal of southern African Anura},
	journal = {Zoologica Africana},
	volume = {12},
	year = {1977},
	pages = {169{\textendash}181},
	author = {Van Dijk, D.E.}
}
@article {316,
	title = {Amphibia Zambesiaca 2: Ranidae},
	journal = {Ann. Natal Mus.},
	volume = {27},
	year = {1985},
	pages = {115-181},
	author = {Poynton, J.C. and Broadley, D. G.}
}
