%0 Journal Article
%A V. A. Gurvich
%T Biseparated graphs are perfect
%J Doklady Akademii Nauk
%D 1993
%P 541-545
%V 331
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_331_5_a3/
%G ru
%F DAN_1993_331_5_a3