@article{VMUMM_1998_4_a15,
     author = {A. A. Afonin},
     title = {Nonintegrability of the problem on sliding an unbalanced disk over a horizontal plane},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {69--70},
     year = {1998},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1998_4_a15/}
}