%0 Journal Article %A A. A. Dmitriev %T The influence of solar activity on the coast effect in the ionosphere %J Doklady Akademii Nauk %D 1973 %P 600-602 %V 212 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_212_3_a18/ %G ru %F DAN_1973_212_3_a18