@article {2360,
	title = {Herpetologische Ergebnisse einer Reise nach Kamerun.},
	journal = {Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft, Frankfurt am Main},
	volume = {442},
	year = {1938},
	pages = {1-52},
	author = {Mertens, R.}
}
@article {2383,
	title = {A new frog (Hyperolius poweri) from Natal, South Africa.},
	journal = {Proceedings of the Biological Society of Washington},
	volume = {51},
	year = {1938},
	pages = {213-214},
	author = {Loveridge, A.}
}
@article {1502,
	title = {Studies in the reproduction of Xenopus laevis. I. The relation of the external environmental factors to the sexual cycle},
	journal = {South African Journal of Medical Sciences},
	year = {1938},
	pages = {72-77},
	author = {Berk, L.}
}
@article {2358,
	title = {{\"U}ber eine Froschsammlung aus Westafrika.},
	journal = {Zoologischer Anzeiger},
	volume = {123},
	year = {1938},
	pages = {241-245},
	author = {Mertens, R.}
}
@article {266,
	title = {On a collection of reptiles and amphibians from Liberia},
	journal = {Proceedings of the New England Zo{\"o}logical Club},
	volume = {XVII},
	year = {1938},
	pages = {49-74},
	keywords = {Phrynobatrachus},
	author = {Loveridge, Arthur}
}
