中国科学院数学与系统科学研究院期刊网
The Approximation Problem of Dirichlet Series of Finite Order in the Half Plane
Hong Yan XU, Cai Feng YI
Acta Mathematica Sinica, Chinese Series . 2010, (3): 617 -624 .  DOI: 10.12386/A2010sxxb0069