TY  - JOUR
AU  - Hedrlín, Zdeněk
TI  - On number of commutative mappings from finite set into itself (Preliminary communication)
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1962
SP  - 32
VL  - 3
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/CMUC_1962_3_1_a6/
LA  - en
ID  - CMUC_1962_3_1_a6
ER  -