TY  - JOUR
AU  - J.M. Day
TI  - Recurrent functions and semigroups.
JO  - Semigroup forum
PY  - 1975
SP  - 190
EP  - 202
VL  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1975__10_134111/
ID  - SF_1975__10_134111
ER  -