%0 Journal Article %A Pióro, Konrad %T On some non-obvious connections between graphs and unary partial algebras %J Czechoslovak Mathematical Journal %D 2000 %P 295-320 %V 50 %N 2 %U http://geodesic.mathdoc.fr/item/CMJ_2000_50_2_a5/ %G en %F CMJ_2000_50_2_a5