%0 Journal Article %A W. Wojtyński %T On invariant subspaces of invertible linear oparators %J Commentationes Mathematicae %D 1974 %P 121-122 %V 18 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v18i1.5812/ %R 10.14708/cm.v18i1.5812 %G pl %F 10_14708_cm_v18i1_5812