Bibliography
Reumer, J. W. F., and J.-D. Graf . 1986. Contribution to the phylogeny of Xenopus (Anura: Pipidae). In: Rocek, Z. (Ed.), Studies in Herpetology. Proceedings of the European Herpetological Meeting (3rd ordinary General Meeting of the Societas Europaea Herpetologica). Charles University [Prague], 107-110.
