@article{kauati_pereira_campos_2016,  title={Comparative study of periodicity estimation methods using ultrasonic signals},  volume={32},  ISSN={2446-4740},  url={https://doi.org/10.1590/2446-4740.03815},  DOI={10.1590/2446-4740.03815},  number={3},  journal={Research on Biomedical Engineering},  publisher={Sociedade Brasileira de Engenharia Biomédica},  author={Kauati, Adriana and Pereira, Wagner Coelho de Albuquerque and Campos, Marcello Luiz Rodrigues},  year={2016},  month={Jul},  pages={234–242} }