@article{articled9465db8,
title   = {A trophic study of the sympatric Amazonian freshwater turtles Podocnemis unifilis and Podocnemis expansa (Testudines, Podocnemidae) using carbon and nitrogen stable isotope analyses},
author = {Lara, Neliton Ricardo Freitas and Marques, T.S and Montelo, K.M and Ataídes, Á.G. de and Verdade, Luciano Martins and Malvasio, Adriana and Camargo, Plinio Barbosa de},
year = {2012},
doi = {10.1139/cjz-2012-0143},
journal   = {Canadian Journal of Zoology}
}