• [Wiki] http://en.wikipedia.org/wiki/Phaeognathus_hubrichti.
• [amphibiaweb] http://amphibiaweb.org/cgi/amphib_query?rel-common_name=like&where-scientific_name=Phaeognathus+hubrichti.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Phaeognathus_hubrichti.
• [EoL] http://eol.org/pages/1019158/details.
• [ADW] https://animaldiversity.org/accounts/Phaeognathus_hubrichti/.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [ParhDodd1996] Parham, J. F., Dodd, C. K., and Zug, G. R. (1996). Skeletochronological age estimates for the red hills salamander, Phaeognathus hubrichti. Journal of Herpetology, 30(3):401--404.