%0 Journal Article
%A H. Griffiths
%T Borel sets and countable series of operations
%J Fundamenta Mathematicae
%D 1957
%P 115-155
%V 44
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-44-2-115-155/
%R 10.4064/fm-44-2-115-155
%G en
%F 10_4064_fm_44_2_115_155