%0 Journal Article
%A Trlifaj, Jan
%T Non-perfect rings and a theorem of Eklof and Shelah
%J Commentationes Mathematicae Universitatis Carolinae
%D 1991
%P 27-32
%V 32
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1991__32_1_a3/
%G en
%F CMUC_1991__32_1_a3