%0 Journal Article %A Stanisław Knapowski %T Contributions to the theory of the distribution of prime numbers in arithmetical progressions I %J Acta Arithmetica %D 1960 %P 415-434 %V 6 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-6-4-415-434/ %R 10.4064/aa-6-4-415-434 %G en %F 10_4064_aa_6_4_415_434