%0 Journal Article
%A Rolewicz, Stefan
%T On σ-porous and Φ-angle-small sets in metric spaces
%J Control and Cybernetics
%D 2003
%P 671-681
%V 32
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CC_2003_32_3_a13/
%G en
%F CC_2003_32_3_a13