TY  - JOUR
AU  - Havel, V. J.
AU  - Klouda, J.
TI  - Closure conditions of commutativity
JO  - Archivum mathematicum
PY  - 1994
SP  - 9
EP  - 16
VL  - 30
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_1994__30_1_a1/
LA  - en
ID  - ARM_1994__30_1_a1
ER  -