@misc{indiciaec0fba7cc5d2d,
  title = {The distribution of calcium carbonate in soils; a computer simulation using program CALSOIL},
  author = {Larry Mayer},
  year = {1986},
  doi = {10.3133/ofr86155},
  url = {https://pubs.usgs.gov/publication/ofr86155},
  note = {Source identifier: ofr86155}
}