TY  - JOUR
AU  - Song, Seok-Zun
AU  - Park, Kwon-Ryong
TI  - Extreme preservers of maximal column rank inequalities of matrix sums over semirings
JO  - Czechoslovak Mathematical Journal
PY  - 2008
SP  - 693
EP  - 703
VL  - 58
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMJ_2008__58_3_a7/
LA  - en
ID  - CMJ_2008__58_3_a7
ER  -