%0 Journal Article %A Riečanová, Zdenka %T Archimedean atomic lattice effect algebras in which all sharp elements are central %J Kybernetika %D 2006 %P 143-150 %V 42 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2006__42_2_a1/ %G en %F KYB_2006__42_2_a1