@inproceedings{pavel2005boseeinstein,
title={BoseEinstein condensation in geometrically deformed tubes},
author={Pavel Exner, and Valentin A Zagrebnov},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020125904826689629},
booktitle={Journal of Physics A: Mathematical and General},
volume={38},
number={25},
pages={L463},
year={2005},
}
Pavel Exner, and Valentin A Zagrebnov. BoseEinstein condensation in geometrically deformed tubes. 2005. Vol. 38. In Journal of Physics A: Mathematical and General. pp.L463. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020125904826689629.