%0 Journal Article
%A Vassilios Gregoriades
%T Turning Borel sets into clopen sets effectively
%J Fundamenta Mathematicae
%D 2012
%P 119-143
%V 219
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm219-2-4/
%R 10.4064/fm219-2-4
%G en
%F 10_4064_fm219_2_4