%0 Journal Article %A V. N. Sazonov %T On the circular polarization of twilight %J Doklady Akademii Nauk %D 1973 %P 840-841 %V 211 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_211_4_a22/ %G ru %F DAN_1973_211_4_a22