@article{article08120895,
title   = {Avian air sacs and neopulmo: their evolution, form and function},
author = {Klein, Wilfried and Ribeiro, Vinícius Pereira and Souza, Ray Brasil Bueno de},
year = {2025},
doi = {10.1098/rstb.2023.0421},
journal   = {Philosophical Transactions of the Royal Society B: Biological Sciences}
}