Channing, A., Schmitz, A., Burger, M. and Kielgast, J. 2013.

A molecular phylogeny of African Dainty Frogs, with the description of four new species (Anura: Pyxicephalidae: Cacosternum)

. Zootaxa. 3701, 5 (Aug. 2013), 518–550. DOI:https://doi.org/10.11646/zootaxa.3701.5.2.