Acta Mathematica Sinica, English Series > 2000 > 16 > 2 > 261-270
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journal ISSN : | 1439-8516 |
journal e-ISSN : | 1439-7617 |
Acta Mathematica Sinica, English Series > 2000 > 16 > 2 > 261-270
journal ISSN : | 1439-8516 |
journal e-ISSN : | 1439-7617 |