中国科学院数学与系统科学研究院期刊网
ITERATED LIMIT FOR VARIATION DIMINISHING APPROXIMATION OF SPLINE FUNCTIONS
胡莹生;徐叔贤
Acta Mathematica Sinica, Chinese Series . 1979, (3): 375 -388 .  DOI: 10.12386/A1979sxxb0036