Moscow University Mathematics Bulletin > 2017 > 72 > 4 > 154-160
Source
Abstract
Identifiers
journal ISSN : | 0027-1322 |
journal e-ISSN : | 1934-8444 |
DOI | 10.3103/S0027132217040039 |
Moscow University Mathematics Bulletin > 2017 > 72 > 4 > 154-160
journal ISSN : | 0027-1322 |
journal e-ISSN : | 1934-8444 |
DOI | 10.3103/S0027132217040039 |