%0 Journal Article %A V. M. Mishin %T On the structure of the diurnal course of magnetic activity %J Doklady Akademii Nauk %D 1958 %P 1109-1112 %V 118 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1958_118_6_a15/ %G ru %F DAN_1958_118_6_a15