@misc{indiciaefcb0125118eb,
  title = {Separating spatially distributed response to stimulation from background. I. Optical imaging.},
  author = {R Everson and B W Knight and L Sirovich},
  year = {1997},
  doi = {10.1007/s004220050400},
  url = {https://pubmed.ncbi.nlm.nih.gov/9433755/},
  note = {Source identifier: 9433755}
}