TY  - JOUR
AU  - A. S. Holevo
TI  - Mathematical problems in the theory of quantum channels
JO  - Informatics and Automation
PY  - 1975
SP  - 226
EP  - 227
VL  - 135
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1975_135_a27/
LA  - ru
ID  - TRSPY_1975_135_a27
ER  -