Lobachevskii Journal of Mathematics > 2018 > 39 > 2 > 195-199
Source
Abstract
Identifiers
journal ISSN : | 1995-0802 |
journal e-ISSN : | 1818-9962 |
DOI | 10.1134/S1995080218020105 |
Lobachevskii Journal of Mathematics > 2018 > 39 > 2 > 195-199
journal ISSN : | 1995-0802 |
journal e-ISSN : | 1818-9962 |
DOI | 10.1134/S1995080218020105 |