%0 Journal Article
%A Shmuel Kantorovitz
%T Spectrality Criteria for Unbounded Operators with Real Spectrum.
%J Mathematische Annalen
%D 1981
%P 19-28
%V 256
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1981__256_163493/
%F MAN_1981__256_163493