@misc{indiciaebbef3d898efb,
  title = {Translocation of silica and other elements from rock into Equisetum and three grasses},
  author = {T. S. Lovering and Celeste G. Engel},
  year = {1967},
  doi = {10.3133/pp594b},
  url = {https://pubs.usgs.gov/publication/pp594B},
  note = {Source identifier: pp594B}
}