%0 Journal Article %A È. L. Akim %A V. A. Stepaniants %A Z. P. Vlasova %T Determination of Earth's and Lunar masses based on observations of the motion of ``Venus-4'', ``Venus-5'', ``Venus-6'', and ``Venus-7'' automatic interplanetary stations moving off the Earth %J Doklady Akademii Nauk %D 1971 %P 1303-1306 %V 201 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_201_6_a9/ %G ru %F DAN_1971_201_6_a9