Search results for: Ning Liu
Acta Mathematica Sinica, English Series > 2016 > 32 > 8 > 893-900
Acta Mathematica Sinica, English Series > 2007 > 23 > 1 > 77-82
Acta Mathematica Sinica, English Series > 2007 > 23 > 5 > 915-924
Acta Mathematica Sinica, English Series > 2006 > 22 > 1 > 61-68