@Article{angeo-22-63-2004,
AUTHOR = {Apatenkov, S. V. and Sergeev, V. A. and Pirjola, R. and Viljanen, A.},
TITLE = {Evaluation of the geometry of ionospheric current systems related to rapid geomagnetic variations},
JOURNAL = {Annales Geophysicae},
VOLUME = {22},
YEAR = {2004},
NUMBER = {1},
PAGES = {63--72},
URL = {https://angeo.copernicus.org/articles/22/63/2004/},
DOI = {10.5194/angeo-22-63-2004}
}