%0 Journal Article %A M. L. Rasulov %T Conditions for the correctness of one-dimensional mixed problems %J Doklady Akademii Nauk %D 1961 %P 305-308 %V 139 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_139_2_a11/ %G ru %F DAN_1961_139_2_a11