TY  - BOOK
AU  - Удальцова, З. В. Udal'tsova, Z. V.
TI  - Sovetskoye vizantinovedeniye: za 50 let 
SN  - RUSSIAN15939
U1  - 001.424 
PY  - 1969///
CY  - Москва
PB  - Наука
KW  - Operations research
ER  -