%0 Journal Article
%A Kučera, Antonín
%T A note on initial segments below $\utilde O'$
%J Commentationes Mathematicae Universitatis Carolinae
%D 1989
%P 779-781
%V 30
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1989__30_4_a20/
%G en
%F CMUC_1989__30_4_a20