@article{DAN_1975_221_1_a16,
     author = {M. Sh. Ryvkin},
     title = {Neutral system of two charged interacting particles in a magnetic field},
     journal = {Doklady Akademii Nauk},
     pages = {67--69},
     publisher = {mathdoc},
     volume = {221},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_221_1_a16/}
}