TY  - JOUR
AU  - M. I. Zelikin
TI  - Group symmetry in degenerate extremal problems
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1988
SP  - 189
EP  - 190
VL  - 43
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1988_43_2_a21/
LA  - en
ID  - RM_1988_43_2_a21
ER  -