TY  - JOUR
AU  - Medeiros, Luiz Adauto
TI  - An application of semigroups of class $C_0$
JO  - Portugaliae mathematica
PY  - 1967
SP  - 71
EP  - 77
VL  - 26
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1967__26_1_115003/
LA  - en
ID  - PORMA_1967__26_1_115003
ER  -