%0 Journal Article %A Kevin R. Coombes %T Motifs, L-Functions, and the K-Cohomology of Rational Surfaces over Finite Fields. %J Mathematische Annalen %D 1986 %P 255-268 %V 276 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1986__276_164195/ %F MAN_1986__276_164195