%0 Journal Article %A C. Ryll-Nardzewski %A B. Węglorz %T Compactness and homomorphisms of algebraic structures %J Colloquium Mathematicum %D 1967 %P 233-237 %V 18 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-18-1-233-237/ %R 10.4064/cm-18-1-233-237 %G en %F 10_4064_cm_18_1_233_237