Vestnik St. Petersburg University, Mathematics > 2018 > 51 > 1 > 9-14
Source
Abstract
Identifiers
journal ISSN : | 1063-4541 |
journal e-ISSN : | 1934-7855 |
DOI | 10.3103/S1063454118010119 |
Vestnik St. Petersburg University, Mathematics > 2018 > 51 > 1 > 9-14
journal ISSN : | 1063-4541 |
journal e-ISSN : | 1934-7855 |
DOI | 10.3103/S1063454118010119 |