@inproceedings{joseph1974a$p$-extremal,
title={A$p$-extremal length and$p$-capacity equality},
author={Joseph Hesse},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203455706607225},
booktitle={Arkiv for Matematik},
volume={13},
number={1},
pages={131-144},
year={1974},
}