TY  - JOUR
AU  - N. N. Sharov
TI  - Upper bounds for the capacity of discrete communication channels
JO  - Diskretnaya Matematika
PY  - 1990
SP  - 155
EP  - 157
VL  - 2
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DM_1990_2_1_a15/
LA  - ru
ID  - DM_1990_2_1_a15
ER  -