TY  - JOUR
AU  - Yu. G. Borisovich
TI  - Topological characteristics and investigation of the solvability of nonlinear problems
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1997
SP  - 3
EP  - 23
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1997_2_a0/
LA  - ru
ID  - IVM_1997_2_a0
ER  -