@article{10_4064_aa_51_3_195_200,
     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 polynomial},
     journal = {Acta Arithmetica},
     pages = {195--200},
     publisher = {mathdoc},
     volume = {51},
     number = {3},
     year = {1988},
     doi = {10.4064/aa-51-3-195-200},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-51-3-195-200/}
}