TY  - JOUR
TI  - Zabreiko Petr Petrovich
JO  - Journal of the Belarusian State University. Mathematics and Informatics
PY  - 2019
SP  - 90
EP  - 92
VL  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BGUMI_2019_1_a10/
LA  - ru
ID  - BGUMI_2019_1_a10
ER  -