@article{souza_camargo_2019, title={COMPARISON OF GNSS INDICES, IONOSONDES AND ALL-SKY IMAGERS IN MONITORING THE IONOSPHERE IN BRAZIL DURING QUIET AND DISTURBED DAYS}, volume={25}, ISSN={1982-2170}, url={https://doi.org/10.1590/s1982-21702019000S00005}, DOI={10.1590/s1982-21702019000S00005}, number={spe}, journal={Boletim de Ciências Geodésicas}, publisher={Universidade Federal do Paraná}, author={Souza, Ana Lucia Christovam de and Camargo, Paulo de Oliveira}, year={2019}, pages={e2019s005} }