%0 Journal Article %A J. Płonka %T Exchange of independent sets in abstract algebras. II %J Colloquium Mathematicum %D 1966 %P 217-224 %V 14 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-14-1-217-224/ %R 10.4064/cm-14-1-217-224 %G en %F 10_4064_cm_14_1_217_224