@misc{indiciaee2a38c69b392,
  title = {Methods of measuring soil moisture in the field},
  author = {A.I. Johnson},
  year = {1962},
  doi = {10.3133/wsp1619u},
  url = {https://pubs.usgs.gov/publication/wsp1619U},
  note = {Source identifier: wsp1619U}
}