TY  - JOUR
TI  - Erovenko Valerii Aleksandrovich
JO  - Journal of the Belarusian State University. Mathematics and Informatics
PY  - 2020
SP  - 82
EP  - 83
VL  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BGUMI_2020_1_a10/
LA  - ru
ID  - BGUMI_2020_1_a10
ER  -