@inproceedings{nicole1979computing,
title={Computing 2-summing norm with few vectors},
author={Nicole Tomczak-Jaegermann},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203506958491321},
booktitle={Arkiv for Matematik},
volume={17},
number={1},
pages={273-277},
year={1979},
}