@article{RM_2007_62_5_a16,
     author = {M. V. Shamolin},
     title = {A case of complete integrability in the dynamics on the tangent bundle of a~two-dimensional sphere},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1009--1011},
     publisher = {mathdoc},
     volume = {62},
     number = {5},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2007_62_5_a16/}
}