%0 Journal Article %A Eberhard Gerlach %T Generalized invariant subspaces for linear operators %J Studia Mathematica %D 1972 %P 87-90 %V 42 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-42-1-87-90/ %R 10.4064/sm-42-1-87-90 %G en %F 10_4064_sm_42_1_87_90