Vestnik St. Petersburg University: Mathematics > 2008 > 41 > 1 > 21-27
Source
Abstract
Identifiers
journal ISSN : | 1063-4541 |
journal e-ISSN : | 1934-7855 |
DOI | 10.3103/S1063454108010056 |
Vestnik St. Petersburg University: Mathematics > 2008 > 41 > 1 > 21-27
journal ISSN : | 1063-4541 |
journal e-ISSN : | 1934-7855 |
DOI | 10.3103/S1063454108010056 |