@article{10_1017_S0017089500001981,
     author = {Cohen, S. D.},
     title = {The values of a polynomial over a finite field},
     journal = {Glasgow mathematical journal},
     pages = {205--208},
     year = {1973},
     volume = {14},
     number = {2},
     doi = {10.1017/S0017089500001981},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001981/}
}