@article{ND_2012_8_3_a10,
     author = {Ivan A. Bizyaev and Andrey V. Tsiganov},
     title = {On the {Routh} sphere},
     journal = {Russian journal of nonlinear dynamics},
     pages = {569--583},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2012_8_3_a10/}
}