TY  - JOUR
AU  - S. Gurak
TI  - Exponential sums of the form $\sum \chi (x)^{ax} \zeta _{m}^{bx}$
JO  - Acta Arithmetica
PY  - 2007
SP  - 239
EP  - 259
VL  - 126
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa126-3-3/
DO  - 10.4064/aa126-3-3
LA  - en
ID  - 10_4064_aa126_3_3
ER  -