%0 Journal Article
%A Burris, Stanley
%A Lawrence, John
%T Two Undecidability Results using Modified Boolean Powers
%J Canadian journal of mathematics
%D 1982
%P 500-505
%V 34
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1982-033-6/
%R 10.4153/CJM-1982-033-6
%F 10_4153_CJM_1982_033_6