TY  - JOUR
AU  - Donald Marxen
TI  - The topology of the free topological semigroup
JO  - Colloquium Mathematicum
PY  - 1975
SP  - 7
EP  - 16
VL  - 34
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-34-1-7-16/
DO  - 10.4064/cm-34-1-7-16
LA  - en
ID  - 10_4064_cm_34_1_7_16
ER  -