TY  - JOUR
AU  - V. A. Trenogin
TI  - Perturbation of a linear equation by a small nonlinear term
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 311
EP  - 313
VL  - 140
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_140_2_a9/
LA  - ru
ID  - DAN_1961_140_2_a9
ER  -