TY  - JOUR
AU  - Lai, C. K.
AU  - Shum, K. P.
TI  - A note in inverse and dual semigroups
JO  - Czechoslovak Mathematical Journal
PY  - 1992
SP  - 7
EP  - 10
VL  - 42
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1992.128321/
DO  - 10.21136/CMJ.1992.128321
LA  - en
ID  - 10_21136_CMJ_1992_128321
ER  -