TY  - JOUR
AU  - HongBing Yu
TI  - On two problems of Mordell about exponential sums
JO  - Acta Arithmetica
PY  - 1998
SP  - 149
EP  - 154
VL  - 86
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa-86-2-149-154/
DO  - 10.4064/aa-86-2-149-154
LA  - en
ID  - 10_4064_aa_86_2_149_154
ER  -