@misc{indiciae946667f4b91d,
  title = {Negative differential conductivity in shallow-impurity hopping.},
  author = {D Emin and CF Hart},
  year = {1985},
  doi = {10.1103/physrevb.32.6503},
  url = {https://pubmed.ncbi.nlm.nih.gov/9936754/},
  note = {Source identifier: 9936754}
}