%0 Journal Article
%A Wenying, Feng
%A Guoxing, Ji
%T A Counterexample in the theory of derivations
%J Glasgow mathematical journal
%D 1989
%P 161-163
%V 31
%N 2
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007679/
%R 10.1017/S0017089500007679
%F 10_1017_S0017089500007679