TY - JOUR A1 - Klipp, T. D. S. A1 - Petry, A. A1 - de Souza, J. R. A1 - de Paula, E. R. A1 - Falcão, G. S. A1 - de Campos Velho, H. F. T1 - Ionosonde total electron content evaluation using International Global Navigation Satellite System Service data JO - Ann. Geophys. J1 - ANGEO VL - 38 IS - 2 SP - 347 EP - 357 Y1 - 2020/03/18 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/38/347/2020/ L1 - https://angeo.copernicus.org/articles/38/347/2020/angeo-38-347-2020.pdf DO - 10.5194/angeo-38-347-2020 ER -