@misc{indiciaee53c81e6e166,
  title = {[Quantitative ultramicroanalyses].},
  author = {M Niwa and Y Nagashima and F Shimbo and K Igusa},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/5500438/},
  note = {Source identifier: 5500438}
}