TY  - JOUR
AU  - S. L. Blyumin
TI  - Certain properties of a~class of multiplicative systems and questions of approximation of functions by polynomials in these systems.
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1968
SP  - 13
EP  - 22
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1968_4_a2/
LA  - ru
ID  - IVM_1968_4_a2
ER  -