Wilkinson et al, 2003

Mark Wilkinson , Simon P. Loader , David J. Gower , Jonathan A. Sheps & Bernard L. Cohen (2003) Phylogenetic relationships of African caecilians (Amphibia: Gymnophiona): Insights from mitochondrial rRNA gene sequences, African Journal of Herpetology, 52:2, 83-92. https://doi.org/10.1080/21564574.2003.9635483