%0 Journal Article %A M. M. Dzhrbashyan %A R. M. Martirosyan %T On the general theory of biorthogonal kernels %J Doklady Akademii Nauk %D 1960 %P 994-997 %V 132 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_132_5_a5/ %G ru %F DAN_1960_132_5_a5