%0 Journal Article %A G. P. Cherepanov %T Boundary value problems with analytic coefficients %J Doklady Akademii Nauk %D 1965 %P 312-314 %V 161 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_161_2_a14/ %G ru %F DAN_1965_161_2_a14