TY  - JOUR
AU  - Hoo, Cheong Seng
AU  - Shum, Kar-Ping
TI  - On compact $N$-semigroups
JO  - Czechoslovak Mathematical Journal
PY  - 1974
SP  - 552
EP  - 562
VL  - 24
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1974.101274/
DO  - 10.21136/CMJ.1974.101274
LA  - en
ID  - 10_21136_CMJ_1974_101274
ER  -