TY  - JOUR
AU  - N. Hindman
TI  - The minimal ideals of a multiplicative and additive subsemigroup of ßN.
JO  - Semigroup forum
PY  - 1985
SP  - 283
EP  - 292
VL  - 32
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1985__32_134787/
ID  - SF_1985__32_134787
ER  -