%0 Journal Article %A Yu. A. Klokov %T Boundary-value problems with conditions at $\pm\infty$ %J Doklady Akademii Nauk %D 1961 %P 799-801 %V 139 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a6/ %G ru %F DAN_1961_139_4_a6