%0 Journal Article %A W. Żelazko %T Concerning extension of multiplicative linear functionals in Banach algebras %J Studia Mathematica %D 1968 %P 495-499 %V 31 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-31-5-495-499/ %R 10.4064/sm-31-5-495-499 %G en %F 10_4064_sm_31_5_495_499