@article{DAN_1977_233_3_a13,
     author = {\`E. L. Akim and V. A. Stepaniants},
     title = {Numerical theory of the {Earth} and {Venus} motion according to the data of radiolocation, optical observations, and observations of the motion of {{\textquotedblleft}Venera-9{\textquotedblright}} and {{\textquotedblleft}Venera-10{\textquotedblright}} artificial satellites},
     journal = {Doklady Akademii Nauk},
     pages = {314--317},
     year = {1977},
     volume = {233},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_233_3_a13/}
}