@article{ND_2015_11_1_a9,
     author = {Andrey V. Tsiganov},
     title = {Separation of variables for some generalization of the {Chaplygin} system on~a~sphere},
     journal = {Russian journal of nonlinear dynamics},
     pages = {179--185},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2015_11_1_a9/}
}