TY  - JOUR
AU  - V. A. Shapiro
AU  - A. A. Akhmetzyanova
AU  - N. V. Fedorova
TI  - Secular variation of the geomagnetic field in the course of 21 and 22 solar activity maxima
JO  - Doklady Akademii Nauk
PY  - 1995
SP  - 243
EP  - 246
VL  - 344
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1995_344_2_a15/
LA  - ru
ID  - DAN_1995_344_2_a15
ER  -