%0 Journal Article %A J. Wójcik %T On the density of some sets of primes connected with cyclotomic polynomials %J Acta Arithmetica %D 1982 %P 117-131 %V 41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-41-2-117-131/ %R 10.4064/aa-41-2-117-131 %G en %F 10_4064_aa_41_2_117_131