%0 Journal Article
%A Zajíček, Luděk
%A Zelený, Miroslav
%T On the complexity of some $\sigma$-ideals of $\sigma$-P-porous sets
%J Commentationes Mathematicae Universitatis Carolinae
%D 2003
%P 531-554
%V 44
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_2003__44_3_a11/
%G en
%F CMUC_2003__44_3_a11