TY - JOUR A1 - Viljanen, A. A1 - Tanskanen, E. T1 - Climatology of rapid geomagnetic variations at high latitudes over two solar cycles JO - Ann. Geophys. J1 - ANGEO VL - 29 IS - 10 SP - 1783 EP - 1792 Y1 - 2011/10/11 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/29/1783/2011/ L1 - https://angeo.copernicus.org/articles/29/1783/2011/angeo-29-1783-2011.pdf DO - 10.5194/angeo-29-1783-2011 ER -