TY  - JOUR
AU  - R. G. Barantsev
TI  - A~boundary problem for equation $\psi_{\sigma\sigma}-K(\sigma)\psi_{\theta\theta}=0$ values given on the characteristic and $\sigma=\operatorname{const}$ lines
JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 955
EP  - 958
VL  - 113
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_113_5_a1/
LA  - ru
ID  - DAN_1957_113_5_a1
ER  -