中国科学院数学与系统科学研究院期刊网
An Integral Representation of Bivariate Splines and the Dimension of Quadratic Spline Spaces over Stratified Triangulation
刘焕文
Acta Mathematica Sinica, Chinese Series . 1994, (4): 534 -543 .  DOI: 10.12386/A1994sxxb0071