@article{TMF_2021_207_2_a10,
     author = {A. V. Sakharov},
     title = {Dynamics of a~point in the~axisymmetric gravitational potential of a~massive fixed ring and center},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {319--330},
     publisher = {mathdoc},
     volume = {207},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2021_207_2_a10/}
}