@misc{indiciae79bc76fe0015,
  title = {Influences of calcium availability and tree species on Ca isotope fractionation in soil and vegetation},
  author = {B.D. Page and T.D. Bullen and M.J. Mitchell},
  year = {2008},
  doi = {10.1007/s10533-008-9188-5},
  url = {https://pubs.usgs.gov/publication/70031880},
  note = {Source identifier: 70031880}
}