%0 Journal Article %A Nieminen, Juhani %T On the canonical subdirect decomposition of a join semilattice %J Commentationes Mathematicae Universitatis Carolinae %D 1972 %P 363-372 %V 13 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1972__13_2_a13/ %G en %F CMUC_1972__13_2_a13