Acta Mathematica Sinica, English Series
Acta Mathematica Sinica, English Series > 2006 > 22 > 6 > 1721-1724
Acta Mathematica Sinica, English Series > 2006 > 22 > 6 > 1863-1890
Acta Mathematica Sinica, English Series > 2006 > 22 > 6 > 1819-1824