TY - JOUR A1 - Katsavrias, C. A1 - Papadimitriou, C. A1 - Aminalragia-Giamini, S. A1 - Daglis, I. A. A1 - Sandberg, I. A1 - Jiggens, P. T1 - On the semi-annual variation of relativistic electrons in the outer radiation belt JO - Ann. Geophys. J1 - ANGEO VL - 39 IS - 3 SP - 413 EP - 425 Y1 - 2021/05/12 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/39/413/2021/ L1 - https://angeo.copernicus.org/articles/39/413/2021/angeo-39-413-2021.pdf DO - 10.5194/angeo-39-413-2021 ER -