%0 Journal Article
%A Krall, Allan M.
%T Semibounded Extensions of Singular Ordinary Differential Operators
%J Canadian mathematical bulletin
%D 1988
%P 432-438
%V 31
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-063-x/
%R 10.4153/CMB-1988-063-x
%F 10_4153_CMB_1988_063_x