TY  - JOUR
AU  - Yu. N. Shteinikov
TI  - On the size of the set of the product of sets of rational numbers
JO  - Čebyševskij sbornik
PY  - 2020
SP  - 357
EP  - 363
VL  - 21
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CHEB_2020_21_1_a22/
LA  - ru
ID  - CHEB_2020_21_1_a22
ER  -