%0 Journal Article
%A Cichoń, Jacek
%A Jasiński, Andrzej
%T A note on complex unions of subsets of the real line
%J Acta Universitatis Carolinae. Mathematica et Physica
%D 2001
%P 11-15
%V 42
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AUCMP_2001__42_2_a2/
%G en
%F AUCMP_2001__42_2_a2