TY  - JOUR
AU  - S. L. Ziglin
TI  - The absence of an additional first integral in a problem of the
JO  - Doklady Akademii Nauk
PY  - 1987
SP  - 804
EP  - 807
VL  - 292
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1987_292_4_a7/
LA  - ru
ID  - DAN_1987_292_4_a7
ER  -