Search results for: D. Liu
Acta Mathematica Hungarica > 2010 > 127 > 3 > 225-238
Acta Mathematica Hungarica > 2008 > 120 > 1-2 > 127-139
Acta Mathematica Hungarica > 2010 > 127 > 3 > 225-238
Acta Mathematica Hungarica > 2008 > 120 > 1-2 > 127-139