%0 Journal Article
%A F. B. Koval'chik
%T Density theorems and the distribution of primes in sectors and progressions
%J Doklady Akademii Nauk
%D 1974
%P 31-34
%V 219
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1974_219_1_a5/
%G ru
%F DAN_1974_219_1_a5