%0 Journal Article %A Geisser, Thomas %T Duality for $\Bbb Z$-constructible sheaves on curves over finite fields %J Documenta mathematica %D 2012 %P 989-1002 %V 17 %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_2012__17__a1/ %G en %F DOCMA_2012__17__a1