%0 Journal Article
%A M. G. Krein
%T A contribution to the theory of linear non-selfadjoined operators
%J Doklady Akademii Nauk
%D 1960
%P 254-256
%V 130
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1960_130_2_a2/
%G ru
%F DAN_1960_130_2_a2