%0 Journal Article %A A. F. Leont'ev %T On the completeness of the system $\{e^\lambda n^z\}$ in a closed strip %J Doklady Akademii Nauk %D 1963 %P 266-268 %V 152 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_152_2_a3/ %G ru %F DAN_1963_152_2_a3