%0 Journal Article
%A O. V. Popov
%T On quadratic residues and nonresidues in a sequence of square-free numbers
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1989
%P 81-83
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1989_5_a21/
%G ru
%F VMUMM_1989_5_a21