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	pages = {515-516},
	author = {Boulenger, G.A.}
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@article {1152,
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	author = {Paulian, R. and Vilardebo, A.}
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@article {1142,
	title = {Voix d{\textquoteright}amphibiens camerounais IV.- Raninae: genres Ptychadena, Hildebrandtia et Dicroglossus},
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	volume = {18},
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	author = {J.-L. Amiet}
}
@article {1150,
	title = {Notes faunistiques, ethologiques et ecologiques sur quelques amphibiens anoures du Cameroun},
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	pages = {135-161},
	author = {J.-L. Amiet}
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	title = {Remarques et mise au point sur quelques especes de Ptychadena (Amphibia, Ranidae)},
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@book {329,
	title = {Herpetofauna of West Africa},
	volume = {I},
	year = {2000},
	publisher = {Chiaira},
	organization = {Chiaira},
	address = {Frankfurt, Germany},
	author = {R{\"o}del, Mark-Oliver}
}
@book {1091,
	title = {Herpetofauna of West Africa},
	volume = {Vol. I Amphibians of the West African Savanna},
	year = {2000},
	publisher = {Edition Chimaira},
	organization = {Edition Chimaira},
	address = {Frankfurt am Main},
	author = {R{\"o}del, Mark-Oliver}
}
