%0 Journal Article %A A. M. Sedletskii %T Systems of exponentials with a separable real spectrum that are %J Doklady Akademii Nauk %D 1995 %P 165-166 %V 342 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1995_342_2_a4/ %G ru %F DAN_1995_342_2_a4