%0 Journal Article
%A Palle E.T. Jorgensen
%T Approximately Invariant Subspaces for Unbounded Linear Operators. II.
%J Mathematische Annalen
%D 1977
%P 177-182
%V 227
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1977__227_162974/
%F MAN_1977__227_162974