@misc{indiciae26aba0f63a53,
  title = {Field determination of vertical permeability to air in the unsaturated zone},
  author = {Edwin P. Weeks},
  year = {1978},
  doi = {10.3133/pp1051},
  url = {https://pubs.usgs.gov/publication/pp1051},
  note = {Source identifier: pp1051}
}