@misc{indiciaee75d6e1d167e,
  title = {The theory and prototype development of a stress-monitoring system},
  author = {H.S. Swolfs and J.B. Walsh},
  year = {1990},
  doi = {10.1785/bssa0800010197},
  url = {https://pubs.usgs.gov/publication/70015912},
  note = {Source identifier: 70015912}
}