@article{MZM_1994_56_3_a6,
     author = {V. V. Kozlov and Yu. N. Fedorov},
     title = {Integrable systems on the sphere with elastic interaction potentials},
     journal = {Matemati\v{c}eskie zametki},
     pages = {74--79},
     publisher = {mathdoc},
     volume = {56},
     number = {3},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1994_56_3_a6/}
}