@article{HINEMAN201512,
  title = {Very weak solutions for Poisson–Nernst–Planck system},
  journal = {Nonlinear Analysis: Theory, Methods & Applications},
  volume = {115},
  pages = {12--24},
  year = {2015},
  doi = {https://doi.org/10.1016/j.na.2014.11.018},
  author = {Jay L. Hineman and Rolf J. Ryham}
}