%0 Journal Article %A Abdelkader Benali %A Mohammed Hichem Mortad %T Generalizations of Kaplansky's Theorem Involving Unbounded Linear Operators %J Bulletin of the Polish Academy of Sciences. Mathematics %D 2014 %P 181-186 %V 62 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ba62-2-6/ %R 10.4064/ba62-2-6 %G en %F 10_4064_ba62_2_6