@mastersthesis{mastersthesis453c36f0,
title   = {Revisao do genero sphaenorhynghus tschudi, 1838: composicao, analise cladistica e biogeografia (anura, hylidae)},
author = {Caramaschi, Ulisses and Vanzolini, Paulo Emilio},
year = {1989},
school = {Universidade de São Paulo}
}