%0 Journal Article %A J. Wójcik %T On the congruence $f(x^k) ≡ 0 mod q$, where q is a prime and f is a polynomial %J Acta Arithmetica %D 1988 %P 195-200 %V 51 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-51-3-195-200/ %R 10.4064/aa-51-3-195-200 %G en %F 10_4064_aa_51_3_195_200