@misc{indiciaed3b4d8b7c278,
  title = {An automatic high-resolution gradient analyzing system.},
  author = {H Noll},
  year = {1969},
  doi = {10.1016/0003-2697(69)90225-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/5397234/},
  note = {Source identifier: 5397234}
}