Counting irreducible factors of polynomials over a finite field.

Arnold Knopfmacher John Knopfmacher Counting irreducible factors of polynomials over a finite field. 103-118 1993 112 Discret. Math. 1-3 https://doi.org/10.1016/0012-365X(93)90227-K db/journals/dm/dm112.html#KnopfmacherK93