@misc{indiciaeed2e64f885fb, title = {Using DC resistivity ring array surveys to resolve conductive structures around tunnels or mine-workings}, author = {Michael Albert Mitchell and Douglas W. Oldenburg}, year = {2023}, doi = {10.1016/j.jappgeo.2023.104949}, url = {https://pubs.usgs.gov/publication/70242669}, note = {Source identifier: 70242669} }