@article{DAN_1969_186_2_a12,
     author = {B. I. Kogan and P. Ya. Bershtein},
     title = {Oscillations of a rotating disc under partial braking},
     journal = {Doklady Akademii Nauk},
     pages = {289--292},
     publisher = {mathdoc},
     volume = {186},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_186_2_a12/}
}