%0 Journal Article %A Čerych, Jan %T A characterization of essential sets of function algebras %J Archivum mathematicum %D 2004 %P 229-232 %V 40 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_2004__40_3_a1/ %G en %F ARM_2004__40_3_a1