TY  - JOUR
AU  - V. V. Kozlov
TI  - Integrable cases of the problem of motion of a point over a three- dimensional sphere in a force field with fourth-degree potential
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1985
SP  - 93
EP  - 95
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1985_3_a24/
LA  - ru
ID  - VMUMM_1985_3_a24
ER  -