%0 Journal Article %A LashkarizadehBami, M. %T The topological centersof LUC(S)* and Ma(S)** of certainfoundation semigroups %J Glasgow mathematical journal %D 2000 %P 335-343 %V 42 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500030020/ %R 10.1017/S0017089500030020 %F 10_1017_S0017089500030020