%0 Journal Article
%A Kristi Mattila
%T On proper boundary points of the spectrum and complemented eigenspaces.
%J Mathematica Scandinavica
%D 1978
%P 363-368
%V 43
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MS2_1978__43_166629/
%F MS2_1978__43_166629