 @article{venturelli_klein_2023,  title={Heart rate response and bimodal gas exchange in three developmental stages of the bullfrog <i>Lithobates catesbeianus</i> (Anura: Ranidae)},  volume={40},  ISSN={1984-4670},  url={https://doi.org/10.1590/S1984-4689.v40.e23011},  DOI={10.1590/S1984-4689.v40.e23011},  journal={Zoologia (Curitiba)},  publisher={Sociedade Brasileira de Zoologia},  author={Venturelli, Diego P. and Klein, Wilfried},  year={2023},  pages={e23011} }