@article{zamlutti_2005,  title={The formal equations of the low latitude lower ionosphere and their applications},  volume={23},  ISSN={0102-261X},  url={https://doi.org/10.1590/S0102-261X2005000200001},  DOI={10.1590/S0102-261X2005000200001},  number={2},  journal={Revista Brasileira de Geofísica},  publisher={Sociedade Brasileira de Geofísica},  author={Zamlutti, Carlos José},  year={2005},  month={Apr},  pages={113–122} }