@inproceedings{pavel2003magnetic,
title={Magnetic layers with periodic point perturbations},
author={Pavel Exner, and K Nmcov},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020130632803881651},
booktitle={Reports on Mathematical Physics},
volume={52},
number={2},
pages={255-280},
year={2003},
}

Pavel Exner, and K Nmcov. Magnetic layers with periodic point perturbations. 2003. Vol. 52. In Reports on Mathematical Physics. pp.255-280. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020130632803881651.