@misc{heagy2018direct,
  title={Direct current resistivity with steel-cased wells},
  author={Lindsey J. Heagy and Douglas W. Oldenburg},
  year={2018},
  eprint={1810.12446},
  archivePrefix={arXiv},
  primaryClass={physics.geo-ph},
  doi={10.1093/gji/ggz281},
  url={https://arxiv.org/abs/1810.12446}
}