%0 Journal Article %A Vlastimil Dlab %T On a problem of Mazur and Ulam about irreducible generating systems in groups %J Colloquium Mathematicum %D 1959 %P 171-176 %V 7 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-7-2-171-176/ %R 10.4064/cm-7-2-171-176 %G en %F 10_4064_cm_7_2_171_176