@inproceedings{v.1988interval,
title={Interval estimates},
author={V. Nestoridis},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203529574049508},
booktitle={Arkiv for Matematik},
volume={27},
number={1},
pages={139-143},
year={1988},
}