%0 Journal Article %A Chalk, J. H. H. %T On Incomplete Character Sums to a Prime-Power Modulus %J Canadian mathematical bulletin %D 1987 %P 257-266 %V 30 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1987-037-4/ %R 10.4153/CMB-1987-037-4 %F 10_4153_CMB_1987_037_4