TY  - JOUR
AU  - V. S. Kozyakin
AU  - A. V. Pokrovskii
TI  - The role of controllability-type properties in the study of the
JO  - Doklady Akademii Nauk
PY  - 1992
SP  - 60
EP  - 64
VL  - 324
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1992_324_1_a11/
LA  - ru
ID  - DAN_1992_324_1_a11
ER  -