TY  - JOUR
AU  - A. Abdollahi
AU  - F. Ashraf
AU  - S. M. Shaker
TI  - The Symmetric Group of Degree Six can be Covered by 13 and no Fewer Proper Subgroups
JO  - Bulletin of the Malaysian Mathematical Society
PY  - 2007
VL  - 30
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/BMMS_2007_30_1_a6/
ID  - BMMS_2007_30_1_a6
ER  -