TY  - JOUR
AU  - O. A. Pshenitsyna
TI  - Factor and term ranks for matrix union over semirings
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2003
SP  - 175
EP  - 197
VL  - 9
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_2003_9_3_a12/
LA  - ru
ID  - FPM_2003_9_3_a12
ER  -