%0 Journal Article %A Vinceková, Elena %T New operations on partial Abelian monoids defined by preideals %J Kybernetika %D 2008 %P 441-450 %V 44 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2008__44_3_a12/ %G en %F KYB_2008__44_3_a12