%0 Journal Article %A Michael J. Meyer %T Weak invertibility and strong spectrum %J Studia Mathematica %D 1993 %P 255-269 %V 105 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-105-3-255-269/ %R 10.4064/sm-105-3-255-269 %G en %F 10_4064_sm_105_3_255_269