%0 Journal Article
%A M. M. Gekhtman
%T Spectrum of some nonclassical self-adjoint extensions of the Laplace operator
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1970
%P 72
%V 4
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1970_4_4_a8/
%G ru
%F FAA_1970_4_4_a8