%0 Journal Article %A K. I. Gringauz %A V. A. Rudakov %T Determination of electron concentration in the ionosphere from the rotation of the plane of polarization %J Doklady Akademii Nauk %D 1960 %P 1311-1313 %V 132 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_132_6_a20/ %G ru %F DAN_1960_132_6_a20