%0 Journal Article
%A QingShun Zhu
%T Semilattices of nil-extensions of simple left
(right) $\pi$-regular ordered semigroups
%J Novi Sad Journal of Mathematics
%D 2016
%P 27 - 34
%V 46
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.30755/NSJOM.2013.056/
%R 10.30755/NSJOM.2013.056
%F 10.30755/NSJOM.2013.056