TY - JOUR A1 - Becker-Guedes, F. A1 - Sahai, Y. A1 - Fagundes, P. R. A1 - Espinoza, E. S. A1 - Pillat, V. G. A1 - Lima, W. L. C. A1 - Basu, Su. A1 - Basu, Sa. A1 - Otsuka, Y. A1 - Shiokawa, K. A1 - MacKenzie, E. M. A1 - Pi, X. A1 - Bittencourt, J. A. T1 - The ionospheric response in the Brazilian sector during the super geomagnetic storm on 20 November 2003 JO - Ann. Geophys. J1 - ANGEO VL - 25 IS - 4 SP - 863 EP - 873 Y1 - 2007/05/08 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/25/863/2007/ L1 - https://angeo.copernicus.org/articles/25/863/2007/angeo-25-863-2007.pdf DO - 10.5194/angeo-25-863-2007 ER -