@inproceedings{k.1988on,
title={On an extremal configuration for capacity},
author={K. Haliste},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203529081727504},
booktitle={Arkiv for Matematik},
volume={27},
number={1},
pages={97-104},
year={1988},
}