@article{Zhang2004ANO,
title={A note on the Dirichlet characters of polynomials},
author={W. Zhang and W. Yao},
journal={Acta Arithmetica},
year={2004},
volume={115},
pages={225-229}
}

The main purpose of this paper is using the analytic methods and the properties of character sums to study the computational problem of several kind character sums of polynomials mod q, an odd square-full number, and give two interesting identities for them.