Acta Mathematica Scientia
Acta Mathematica Scientia > 2016 > 36 > 2 > 527-536
Acta Mathematica Scientia > 2016 > 36 > 2 > 537-548
Acta Mathematica Scientia > 2016 > 36 > 5 > 1305-1316
Acta Mathematica Scientia > 2016 > 36 > 6 > 1819-1831
Acta Mathematica Scientia > 2016 > 36 > 2 > 527-536
Acta Mathematica Scientia > 2016 > 36 > 2 > 537-548
Acta Mathematica Scientia > 2016 > 36 > 5 > 1305-1316
Acta Mathematica Scientia > 2016 > 36 > 6 > 1819-1831