%0 Journal Article
%A Paweł Krupski
%T Hyperspaces of universal curves
and $2$-cells are true $F_{\sigma \delta }$-sets
%J Colloquium Mathematicum
%D 2002
%P 91-98
%V 91
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm91-1-7/
%R 10.4064/cm91-1-7
%G en
%F 10_4064_cm91_1_7