TY  - JOUR
AU  - QingShun Zhu
TI  - Semilattices of nil-extensions of simple left
(right) $\pi$-regular ordered semigroups
JO  - Novi Sad Journal of Mathematics
PY  - 2016
SP  - 27 
EP  -  34
VL  - 46
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.30755/NSJOM.2013.056/
DO  - 10.30755/NSJOM.2013.056
ID  - 10.30755/NSJOM.2013.056
ER  -