TY  - JOUR
AU  - I. M. Koval'chik
TI  - On systems of equations in a function space
JO  - Doklady Akademii Nauk
PY  - 1971
SP  - 265
EP  - 267
VL  - 197
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1971_197_2_a3/
LA  - ru
ID  - DAN_1971_197_2_a3
ER  -