%0 Journal Article
%A EL-GEBEILY, MOHAMED
%A O'REGAN, DONAL
%T A CHARACTERIZATION OF SELF-ADJOINT OPERATORS DETERMINED BY THE WEAK FORMULATION OF SECOND-ORDER SINGULAR DIFFERENTIAL EXPRESSIONS
%J Glasgow mathematical journal
%D 2009
%P 385-404
%V 51
%N 2
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089509005060/
%R 10.1017/S0017089509005060
%F 10_1017_S0017089509005060