TY  - JOUR
TI  - Scientific research seminars of the Sexion of Control and Applied Mechanics
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1992
SP  - 81
EP  - 82
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1992_3_a21/
LA  - ru
ID  - VMUMM_1992_3_a21
ER  -