%0 Journal Article
%A Heineken, Hermann
%T On E-groups in the sense of Peng
%J Glasgow mathematical journal
%D 1989
%P 231-242
%V 31
%N 2
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007783/
%R 10.1017/S0017089500007783
%F 10_1017_S0017089500007783