@article{gan_rao_1999,  title={Energetics of the high frequency disturbances over South America},  volume={17},  ISSN={0102-261X},  url={https://doi.org/10.1590/S0102-261X1999000100003},  DOI={10.1590/S0102-261X1999000100003},  number={1},  journal={Revista Brasileira de Geofísica},  publisher={Sociedade Brasileira de Geofísica},  author={Gan, M. A. and Rao, V. B.},  year={1999},  month={Mar},  pages={21–28} }