@article{klein_seleghim junior_hervieu_2004,  title={Time-frequency analysis of intermittent two-phase flows in horizontal piping},  volume={26},  ISSN={1678-5878},  url={https://doi.org/10.1590/S1678-58782004000200009},  DOI={10.1590/S1678-58782004000200009},  number={2},  journal={Journal of the Brazilian Society of Mechanical Sciences and Engineering},  publisher={Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM},  author={Klein, F. L. and Seleghim Junior, P. and Hervieu, E.},  year={2004},  month={Apr},  pages={174–179} }