Russian Mathematics > 2018 > 62 > 12 > 74-80
Source
Abstract
Identifiers
journal ISSN : | 1066-369X |
journal e-ISSN : | 1934-810X |
DOI | 10.3103/S1066369X1812006X |
Russian Mathematics > 2018 > 62 > 12 > 74-80
journal ISSN : | 1066-369X |
journal e-ISSN : | 1934-810X |
DOI | 10.3103/S1066369X1812006X |