@misc{indiciaecf066b70506b,
  title = {Analytic solution for separating spectra into illumination and surface reflectance components.},
  author = {Mark S Drew and Graham D Finlayson},
  year = {2007},
  doi = {10.1364/josaa.24.000294},
  url = {https://pubmed.ncbi.nlm.nih.gov/17206246/},
  note = {Source identifier: 17206246}
}