Science China Mathematics > 2013 > 56 > 12 > 2799-2807
Source
Abstract
Identifiers
journal ISSN : | 1674-7283 |
journal e-ISSN : | 1869-1862 |
DOI | 10.1007/s11425-013-4721-y |
Science China Mathematics > 2013 > 56 > 12 > 2799-2807
journal ISSN : | 1674-7283 |
journal e-ISSN : | 1869-1862 |
DOI | 10.1007/s11425-013-4721-y |