@misc{indiciae8a542377574b,
  title = {A versatile soil percolator.},
  author = {R M Macdonald},
  year = {1979},
  doi = {10.1016/s0323-6056(79)80051-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/382700/},
  note = {Source identifier: 382700}
}