@misc{indiciae7eaaff703964,
  title = {Analysis of the rate of wildcat drilling and deposit discovery},
  author = {L. J. Drew},
  year = {1975},
  doi = {10.1007/bf02080497},
  url = {https://pubs.usgs.gov/publication/70001237},
  note = {Source identifier: 70001237}
}