@inproceedings{kim2000on,
title={On a local uniqueness result for the inverse Sturm-Liouville problem},
author={Kim Knudsen},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203602809499776},
booktitle={Arkiv for Matematik},
volume={39},
number={2},
pages={361-373},
year={2000},
}
Kim Knudsen. On a local uniqueness result for the inverse Sturm-Liouville problem. 2000. Vol. 39. In Arkiv for Matematik. pp.361-373. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203602809499776.