@article{JTNB_2007__19_1_41_0,
     author = {Christian Ballot},
     title = {Counting monic irreducible polynomials $P$ in ${\mathbb{F}_q[X]}$ for which order of ${X\!\!\hspace{4.44443pt}(\@mod \; P)}$ is odd},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {41--58},
     publisher = {Universit\'e Bordeaux 1},
     volume = {19},
     number = {1},
     year = {2007},
     doi = {10.5802/jtnb.572},
     mrnumber = {2332052},
     zbl = {1142.11082},
     language = {en},
     url = {https://jtnb.centre-mersenne.org/articles/10.5802/jtnb.572/}
}