@inproceedings{natan1998the,
title={The failure of the Hardy inequality and interpolation of intersections},
author={Natan Krugljak, Lech Maligranda, and Lars-Erik Persson},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203556411408728},
booktitle={Arkiv for Matematik},
volume={37},
number={2},
pages={323-344},
year={1998},
}

Natan Krugljak, Lech Maligranda, and Lars-Erik Persson. The failure of the Hardy inequality and interpolation of intersections. 1998. Vol. 37. In Arkiv for Matematik. pp.323-344. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203556411408728.