TY  - JOUR
AU  - Laddawan Lohapan
AU  - Jörg Koppitz
TI  - Regular semigroups of partial transformations preserving a fence N
JO  - Novi Sad Journal of Mathematics
PY  - 2017
SP  - 77 
EP  -  91
VL  - 47
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.30755/NSJOM.05333/
DO  - 10.30755/NSJOM.05333
ID  - 10.30755/NSJOM.05333
ER  -