@article{10_4064_aa_41_2_151_161,
     author = {J. W\'ojcik},
     title = {On the congruence $f(x^k) \ensuremath{\equiv} 0 mod q$, where q is a prime and f is a k-normal polynomial},
     journal = {Acta Arithmetica},
     pages = {151--161},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {1982},
     doi = {10.4064/aa-41-2-151-161},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-41-2-151-161/}
}