MathSciDoc: An Archive for Mathematician ∫

@inproceedings{pavel1996point,
  title={Point interactions in two and three dimensions as models of small scatterers},
  author={Pavel Exner, and P eba},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020125144651359607},
  booktitle={Physics Letters A},
  volume={222},
  pages={1-4},
  year={1996},
}