TY  - JOUR
AU  - V. R. Portnov
TI  - Normal solvability in the sense of Hausdorff of a certain nonlinear problem
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 1707
EP  - 1717
VL  - 9
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_9_a16/
LA  - ru
ID  - DE_1973_9_9_a16
ER  -