%0 Journal Article
%A G. Nenciu
%T Theory of the self-adjoint extensions of symmetric operators with a spectral gap
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1985
%P 81-82
%V 19
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1985_19_1_a17/
%G ru
%F FAA_1985_19_1_a17