(2011) „A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of extant frogs, salamanders, and caecilians”. Molecular Phylogenetics and Evolution61 (2), 543–583. o. DOI:10.1016/j.ympev.2011.06.012. PMID21723399.
nih.gov
pubmed.ncbi.nlm.nih.gov
(2011) „A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of extant frogs, salamanders, and caecilians”. Molecular Phylogenetics and Evolution61 (2), 543–583. o. DOI:10.1016/j.ympev.2011.06.012. PMID21723399.