@misc{indiciaeac5ac28299bc,
  title = {Spectroscopy challenge 9.},
  author = {Roberto Martínez-Alvarez and Antonio Herrera and Pedro Ramiro},
  year = {2005},
  doi = {10.1007/s00216-005-3110-y},
  url = {https://pubmed.ncbi.nlm.nih.gov/15729543/},
  note = {Source identifier: 15729543}
}