TY  - JOUR
AU  - Michael Friedberg
TI  - Metrizable approximations of semigroups
JO  - Colloquium Mathematicum
PY  - 1972
SP  - 63
EP  - 69
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-25-1-63-69/
DO  - 10.4064/cm-25-1-63-69
LA  - en
ID  - 10_4064_cm_25_1_63_69
ER  -