TY  - JOUR
AU  - Magill, Kenneth D., Jr.
TI  - On the ideals of the semigroup of the 1-sphere
JO  - Czechoslovak Mathematical Journal
PY  - 1989
SP  - 248
EP  - 261
VL  - 39
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1989.102300/
DO  - 10.21136/CMJ.1989.102300
LA  - en
ID  - 10_21136_CMJ_1989_102300
ER  -