%0 Journal Article %A Andrzej Schinzel %T Reducibility of polynomials and covering systems of congruences %J Acta Arithmetica %D 1967 %P 91-101 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-13-1-91-101/ %R 10.4064/aa-13-1-91-101 %G en %F 10_4064_aa_13_1_91_101