中国科学院数学与系统科学研究院期刊网
AMS
Optimal Quadrature Problem on n-Information for Hardy-Sobolev Classes
Xue Hua LI, Gen Sun FANG
Acta Mathematica Sinica . 2011, (12): 2371 -2378 .  DOI: 10.1007/s10114-011-9483-2