@inproceedings{h.1992a, title={A general discrepancy theorem}, author={H. -P. Blatt, and H. N. Mhaskar}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203540598726603}, booktitle={Arkiv for Matematik}, volume={31}, number={2}, pages={219-246}, year={1992}, }