%0 Journal Article
%A W. Reinhardt
%T Set existence principles of Shoenfield, Ackermann, and Powell
%J Fundamenta Mathematicae
%D 1974
%P 5-34
%V 84
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-84-1-5-34/
%R 10.4064/fm-84-1-5-34
%G en
%F 10_4064_fm_84_1_5_34