%0 Journal Article
%A Štefan Schwabik
%T A remark on the d-characteristic and the $d_{Ξ}$-characteristic of linear operators in a Banach space
%J Studia Mathematica
%D 1973
%P 251-255
%V 48
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-48-3-251-255/
%R 10.4064/sm-48-3-251-255
%G en
%F 10_4064_sm_48_3_251_255