@article{wang2020regularization,
  author = "S. Wang and A. Lee and E. Alexov and S. Zhao",
  title = "A regularization approach for solving Poisson’s equation with singular charge sources and diffuse interfaces",
  year = 2020,
  journal = "Applied Mathematics Letters",
  publisher = "Pergamon",
  volume = 102,
  pages = "106144"
}