%0 Journal Article %A Yu. M. Berezanskii %T Expansion according to eigenfunction of a partial difference equation of order two %J Trudy Moskovskogo matematičeskogo obŝestva %D 1956 %P 203-268 %V 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1956_5_a3/ %G ru %F MMO_1956_5_a3