TY - JOUR A1 - Danilov, A. D. T1 - Long-term trends in the relation between daytime and nighttime values of foF2 JO - Ann. Geophys. J1 - ANGEO VL - 26 IS - 5 SP - 1199 EP - 1206 Y1 - 2008/05/28 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/26/1199/2008/ L1 - https://angeo.copernicus.org/articles/26/1199/2008/angeo-26-1199-2008.pdf DO - 10.5194/angeo-26-1199-2008 ER -