@misc{indiciae0633800dd3ab,
  title = {Optimization of an extraction procedure for the accurate determination of total tin in eighteen Geological Survey of Japan rock reference materials},
  author = {H.N. Elsheimer},
  year = {1993},
  doi = {10.2116/analsci.9.681},
  url = {https://pubs.usgs.gov/publication/70243547},
  note = {Source identifier: 70243547}
}