%0 Journal Article
%A Arthur W. Apter
%T The consistency of level by level equivalence with $V = {\rm HOD}$, the Ground Axiom, and instances of square and diamond
%J Bulletin of the Polish Academy of Sciences. Mathematics
%D 2020
%P 1-10
%V 68
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ba180529-14-3/
%R 10.4064/ba180529-14-3
%G en
%F 10_4064_ba180529_14_3