%0 Journal Article %A È. L. Akim %A V. A. Stepaniants %T Numerical theory of the Earth and Venus motion according to the data of radiolocation, optical observations, and observations of the motion of ``Venera-9'' and ``Venera-10'' artificial satellites %J Doklady Akademii Nauk %D 1977 %P 314-317 %V 233 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_233_3_a13/ %G ru %F DAN_1977_233_3_a13