Science China Mathematics > 2012 > 55 > 8 > 1647-1654
Source
Abstract
Identifiers
journal ISSN : | 1674-7283 |
journal e-ISSN : | 1869-1862 |
DOI | 10.1007/s11425-012-4419-6 |
Science China Mathematics > 2012 > 55 > 8 > 1647-1654
journal ISSN : | 1674-7283 |
journal e-ISSN : | 1869-1862 |
DOI | 10.1007/s11425-012-4419-6 |