%0 Journal Article %A Ülger, A. %T Central elements ofA** for certain Banach algebras A withoutbounded approximate identities %J Glasgow mathematical journal %D 1999 %P 369-377 %V 41 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089599000385/ %R 10.1017/S0017089599000385 %F 10_1017_S0017089599000385