@article{cirillo_2004,  title={Communication by unvoiced speech: the role of whispering},  volume={76},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652004000200034},  DOI={10.1590/S0001-37652004000200034},  number={2},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={Cirillo, Jasmin},  year={2004},  month={Jun},  pages={413–423} }