%0 Journal Article
%A H. Mildenberg
%T A rigid Boolean algebra that admits the elimination of Q21
%J Fundamenta Mathematicae
%D 1993
%P 1-18
%V 142
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-142-1-1-18/
%R 10.4064/fm-142-1-1-18
%G en
%F 10_4064_fm_142_1_1_18