[1]
M.-O. Rödel, C. O. Boateng, J. Penner, and A. Hillers, “A new cryptic Phrynobatrachus species (Amphibia: Anura: Phrynobatrachidae) from Ghana, West Africa”, Zootaxa, vol. 1970, no. 1, pp. 52–63, Jan. 2009.