Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Veronika Barta and Gabriella Sátori and Kitti Alexandra Berényi and Árpád Kis and Earle Williams,Effects of solar flares on the ionosphere as shown by the dynamics of ionograms recorded in Europe and South Africa,Annales Geophysicae,1432-0576,Copernicus GmbH,2019-08-23,37,4,747-761,https://cir.nii.ac.jp/crid/1362262945176233984,https://doi.org/10.5194/angeo-37-747-2019