%0 Journal Article %A Vladimír Müller %A Andrzej Sołtysiak %T Spectrum of generators of a noncommutative Banach algebra %J Studia Mathematica %D 1989 %P 87-95 %V 93 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-93-1-87-95/ %R 10.4064/sm-93-1-87-95 %G en %F 10_4064_sm_93_1_87_95