%0 Journal Article %A B. È. Kunyavskii %A A. N. Skorobogatov %A M. A. Tsfasman %T The combinatorics and geometry of del Pezzo surfaces of degree four %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1985 %P 131-132 %V 40 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1985_40_6_a12/ %G en %F RM_1985_40_6_a12