%0 Journal Article %A Pacheco, Amilcar %T A Note on Relations Between the Zeta-Functions of Galois Coverings of Curves Over Finite Fields %J Canadian mathematical bulletin %D 1990 %P 282-285 %V 33 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-046-x/ %R 10.4153/CMB-1990-046-x %F 10_4153_CMB_1990_046_x