@misc{indiciae10811826e3b7,
  title = {The effect of error in theoretical Earth tide on calibration of borehole strainmeters},
  author = {John O. Langbein},
  year = {2010},
  doi = {10.1029/2010gl044454},
  url = {https://pubs.usgs.gov/publication/70042407},
  note = {Source identifier: 70042407}
}