@article {253,
	title = {Contribution {\`a} l{\textquoteright}ost{\'e}ologie at {\`a} la syst{\'e}matique des ranides africains},
	journal = {Rev. Zool. Bot. Afric.},
	volume = {XXXIV},
	number = {1},
	year = {1940},
	month = {28 December 1940},
	pages = {74-97},
	author = {Laurent, R.}
}
@article {2361,
	title = {Amphibien aus Kamerun gesammelt von M. K{\"o}hler und Dr. H. Graf.},
	journal = {Senckenbergiana Biologica},
	volume = {22},
	year = {1940},
	pages = {103-135},
	author = {Mertens, R.}
}
@article {77,
	title = {Description de trois Amphibiens nouveaux du Cameroun, materiaux de la mission P. Lepesme, R. Paulian et A. Villiers.},
	journal = {Bulletin du Mus{\'e}um national d{\textquoteright}histoire naturelle},
	volume = {2},
	number = {12},
	year = {1940},
	pages = {238-243},
	author = {Angel, F.}
}
@article {2397,
	title = {Description dun rhacophoride nouveau du Congo Belge (Batracien).},
	journal = {Revue de Zoologie et de Botanique Africaines. Tervuren},
	volume = {33},
	year = {1940},
	pages = {313-316},
	author = {Laurent, R.F.}
}
@article {2378,
	title = {Nouveaux batraciens congolais du genre Hyperolius.},
	journal = {Revue de Zoologie et de Botanique Africaines. Tervuren},
	volume = {34},
	year = {1940},
	pages = {1-7},
	author = {Laurent, R.F.}
}
