@article{10_4171_dm_387,
     author = {Thomas Geisser},
     title = {Duality for $\Bbb Z$-constructible sheaves on curves over finite fields},
     journal = {Documenta mathematica},
     pages = {989--1002},
     year = {2012},
     volume = {17},
     doi = {10.4171/dm/387},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/387/}
}