Sandberger, L.; Hillers, A.; Doumbia, J.; Loua, N.-S.; Brede, C.; Rödel, M.-O.

Rediscovery of the Liberian Nimba Toad, Nimbaphrynoides liberiensis (Xavier, 1978) (Amphibia: Anura: Bufonidae), and Reassessment of Its Taxonomic status

. Zootaxa 2010, 2355, 56–68.