TY  - JOUR
AU  - P.A. Grillet
TI  - The number of commutative semigroups of order N.
JO  - Semigroup forum
PY  - 1995
SP  - 317
EP  - 326
VL  - 50
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1995__50_3_135390/
ID  - SF_1995__50_3_135390
ER  -