@article{soviero_pinto_2001,  title={Panel Method Formulation for Oscillating Airfoils in Sonic Flow},  volume={23},  ISSN={0100-7386},  url={https://doi.org/10.1590/S0100-73862001000400002},  DOI={10.1590/S0100-73862001000400002},  number={4},  journal={Journal of the Brazilian Society of Mechanical Sciences},  publisher={The Brazilian Society of Mechanical Sciences},  author={Soviero, Paulo Afonso de Oliveira and Pinto, Fábio Henrique Lameiras},  year={2001},  pages={401–409} }