Social organization in the mating calls of some Neotropical Anurans.
"The Systematics of the Frogs of the Hyla Rubra Group in Middle America" by Juan R. León
Non-morphological data in anuran classification.
"Neotropical Hylid Frogs, Genus Smilisca" by William E. Duellman
Kluge A, Farris J: Quantitative phyletics and the evolution of anurans.
pplacer: linear time maximum-likelihood and Bayesian phylogenetic placement of sequences onto a fixed reference tree