@article{GDZPPN002229188, title = {Irreducible factors of Psi-Polynomials over finite fields.}, journal = {Manuscripta mathematica}, volume = {61}, year = {1988}, pages = {187-204}, zbl = {0658.12011}, url = {http://dml.mathdoc.fr/item/GDZPPN002229188} }
Schoenwaelder, Ulrich. Irreducible factors of Psi-Polynomials over finite fields.. Manuscripta mathematica, Tome 61 (1988) pp. 187-204. http://gdmltest.u-ga.fr/item/GDZPPN002229188/