@misc{indiciae3cbcb8f379a4,
  title = {Klumpen - A mesoscale level of classification for soil structure: Rationale},
  author = {L.R. Follmer},
  year = {1998},
  doi = {10.1016/s1040-6182(98)90190-2},
  url = {https://pubs.usgs.gov/publication/70020491},
  note = {Source identifier: 70020491}
}