中国科学院数学与系统科学研究院期刊网
Operator Spline Interpolations and the Approximate Solutions of Operator Equations on Hilbert Spaces
Xin Jian ZHANG
Acta Mathematica Sinica, Chinese Series . 2002, (2): 227 -234 .  DOI: 10.12386/A2002sxxb0030