@misc{indiciae15dafc9135ac,
  title = {IAEA Internet database of natural matrix reference materials.},
  author = {A R Bleise and B Smodis and D Glavic-Cindro and R M Parr},
  year = {1999},
  doi = {10.1007/bf02784190},
  url = {https://pubmed.ncbi.nlm.nih.gov/10676478/},
  note = {Source identifier: 10676478}
}