Search results for: Y. Xie
Acta Mathematica Hungarica > 2014 > 144 > 1 > 212-216
Acta Mathematica Hungarica > 2014 > 143 > 1 > 185-191
Acta Mathematica Hungarica > 2014 > 144 > 1 > 212-216
Acta Mathematica Hungarica > 2014 > 143 > 1 > 185-191