@article{VMUMM_1991_3_a23,
     author = {D. V. Zenkov},
     title = {On a {Routh} problem},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {87--89},
     year = {1991},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1991_3_a23/}
}