@misc{indiciae3b4636c372c1,
  title = {A comparison of reference method values for calcium, lithium and magnesium with method-dependent assigned values.},
  author = {W R Külpmann and R Buchholz and C Dyrssen and D Ruschke},
  year = {1989},
  doi = {10.1515/cclm.1989.27.9.631},
  url = {https://pubmed.ncbi.nlm.nih.gov/2607323/},
  note = {Source identifier: 2607323}
}