%0 Journal Article
%A P. Newman
%T On a theorem of Urbanik
%J Fundamenta Mathematicae
%D 1958
%P 231-234
%V 46
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-46-2-231-234/
%R 10.4064/fm-46-2-231-234
%G de
%F 10_4064_fm_46_2_231_234