Search results for: H. F. Liu
Acta Mathematica Hungarica > 2019 > 159 > 1 > 287-298
Acta Mathematica Hungarica > 2018 > 156 > 1 > 102-111
Acta Mathematica Hungarica > 2019 > 159 > 1 > 287-298
Acta Mathematica Hungarica > 2018 > 156 > 1 > 102-111