@article{10_14708_cm_v18i1_5812,
     author = {W. Wojty\'nski},
     title = {On invariant subspaces of invertible linear oparators},
     journal = {Commentationes Mathematicae},
     pages = { 121--122},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1974},
     doi = {10.14708/cm.v18i1.5812},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v18i1.5812/}
}