TY  - JOUR
AU  - I. K. Babenko
TI  - Extremal problems of geometry, surgery on manifolds, and problems of group theory
JO  - Izvestiya. Mathematics 
PY  - 1995
SP  - 321
EP  - 332
VL  - 59
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1995_59_2_a3/
LA  - en
ID  - IM2_1995_59_2_a3
ER  -