Search results for: Y. Zhang
Acta Mathematica Hungarica > 2019 > 157 > 2 > 478-488
Acta Mathematica Hungarica > 2018 > 156 > 1 > 240-254
Acta Mathematica Hungarica > 2011 > 132 > 1-2 > 49-62
Acta Mathematica Hungarica > 2010 > 127 > 3 > 273-290