TY  - JOUR
AU  - I. V. Gel'man
TI  - On some non-linear operator
JO  - Doklady Akademii Nauk
PY  - 1958
SP  - 454
EP  - 456
VL  - 120
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1958_120_3_a2/
LA  - ru
ID  - DAN_1958_120_3_a2
ER  -