中国科学院数学与系统科学研究院期刊网
Approximation by Bernstein-Durrmeyer Quasi-Interpolants
Shun Sheng GUO, Geng Sheng ZHA
Acta Mathematica Sinica, Chinese Series . 2005, (4): 681 -692 .  DOI: 10.12386/A2005sxxb0084