%0 Journal Article
%A R. G. Barantsev
%T A~boundary problem for equation $\psi_{\sigma\sigma}-K(\sigma)\psi_{\theta\theta}=0$ values given on the characteristic and $\sigma=\operatorname{const}$ lines
%J Doklady Akademii Nauk
%D 1957
%P 955-958
%V 113
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_113_5_a1/
%G ru
%F DAN_1957_113_5_a1