TY  - JOUR
AU  - Fabrici, Imrich
TI  - A note on principal ideals and $\Cal J$-classes in the direct product of two semigroups
JO  - Czechoslovak Mathematical Journal
PY  - 2000
SP  - 91
EP  - 98
VL  - 50
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMJ_2000__50_1_a11/
LA  - en
ID  - CMJ_2000__50_1_a11
ER  -