TY  - JOUR
AU  - I. M. Lavrent'ev
TI  - Solvability of nonlinear equations
JO  - Doklady Akademii Nauk
PY  - 1967
SP  - 1219
EP  - 1221
VL  - 175
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1967_175_6_a4/
LA  - ru
ID  - DAN_1967_175_6_a4
ER  -