%0 Journal Article
%A B. V. Levin
%T On the least almost prime number in an arithmetic progression and the sequence $k^2x^2+1$
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1965
%V 20
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1965_20_4_a11/
%G ru
%F RM_1965_20_4_a11