%0 Journal Article
%A S. Lajos
%T A characterezation of regular duo semigroups
%J Matematički vesnik
%D 1970
%P 401 
%V 22
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MV_1970_22_3_a19/
%F MV_1970_22_3_a19