%0 Journal Article %A J. Płonka %T On automorphism groups of relational systems and universal algebras %J Colloquium Mathematicum %D 1979 %P 341-344 %V 42 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-42-1-341-344/ %R 10.4064/cm-42-1-341-344 %G en %F 10_4064_cm_42_1_341_344