%0 Journal Article
%A Friedman, Sy D.
%T The Π¹₂-singleton conjecture
%J Journal of the American Mathematical Society
%D 1990
%P 771-791
%V 03
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1990-1071116-6/
%R 10.1090/S0894-0347-1990-1071116-6
%F 10_1090_S0894_0347_1990_1071116_6