TY  - JOUR
AU  - V. A. Gurvich
TI  - Biseparated graphs are perfect
JO  - Doklady Akademii Nauk
PY  - 1993
SP  - 541
EP  - 545
VL  - 331
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1993_331_5_a3/
LA  - ru
ID  - DAN_1993_331_5_a3
ER  -