%0 Journal Article %A Chajda, Ivan %T Direct products of homomorphic mappings. I %J Archivum mathematicum %D 1973 %P 61-65 %V 09 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1973__9_2_a2/ %G en %F ARM_1973__9_2_a2