@article{articlec4875bed,
title   = {Historical biogeography and diversification within the Neotropical parrot genus Pionopsitta (Aves: Psittacidae)},
author = {Ribas, Camila Cherem and Gaban-Lima, Renato and Miyaki, Cristina Yumi and Cracraft, Joel},
year = {2005},
doi = {10.1111/j.1365-2699.2005.01289.x},
journal   = {Journal of Biogeography}
}