Gower, David J., Anna Papadopoulou, Thomas M. Doherty-Bone, Fabio Pupin, Diego San Mauro, Simon P. Loader, and Mark Wilkinson. 2011. “The Systematics of Boulengerula Fischeri (Amphibia: Gymnophiona: Caeciliidae) Based on Morphological and Molecular Data”. Zootaxa 2767 (1). Auckland, New Zealand:14–24. https://doi.org/10.11646/zootaxa.2767.1.2.