%0 Journal Article
%A Cross, R.W.
%T Unbounded linear transformations of upper semi-Fredholm type in normed spaces
%J Portugaliae mathematica
%D 1990
%P 61-79
%V 47
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1990__47_1_115701/
%G en
%F PORMA_1990__47_1_115701