TY  - JOUR
AU  - O. V. Popov
TI  - On quadratic residues and nonresidues in a sequence of square-free numbers
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1989
SP  - 81
EP  - 83
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1989_5_a21/
LA  - ru
ID  - VMUMM_1989_5_a21
ER  -