@misc{indiciae25179ebc2b93,
  title = {Techniques for obtaining absorption spectra on intact biological samples.},
  author = {K H NORRIS and W L BUTLER},
  year = {1961},
  doi = {10.1109/tbmel.1961.4322890},
  url = {https://pubmed.ncbi.nlm.nih.gov/13729604/},
  note = {Source identifier: 13729604}
}