%0 Journal Article %A Sieben, NĂ¡ndor %T Cayley color graphs of inverse semigroups and groupoids %J Czechoslovak Mathematical Journal %D 2008 %P 683-692 %V 58 %N 3 %U http://geodesic.mathdoc.fr/item/CMJ_2008_58_3_a6/ %G en %F CMJ_2008_58_3_a6