@article{DAN_1971_201_6_a9,
     author = {\`E. L. Akim and V. A. Stepaniants and Z. P. Vlasova},
     title = {Determination of {Earth's} and {Lunar} masses based on observations of the motion of {{\textquotedblleft}Venus-4{\textquotedblright},} {{\textquotedblleft}Venus-5{\textquotedblright},} {{\textquotedblleft}Venus-6{\textquotedblright},} and {{\textquotedblleft}Venus-7{\textquotedblright}} automatic interplanetary stations moving off the {Earth}},
     journal = {Doklady Akademii Nauk},
     pages = {1303--1306},
     year = {1971},
     volume = {201},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_201_6_a9/}
}