%0 Journal Article
%A M. M. Gekhtman
%T Existence of surface conditions for nonclassical self-adjoint extensions of the Laplace operator
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1982
%P 62-63
%V 16
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1982_16_1_a9/
%G ru
%F FAA_1982_16_1_a9