@article{40706,
  author = {Belinda Collins and M Dahir and Daniel Madrzykowski},
  title = {Visibility of Exit Signs in Clear and Smoky Conditions},
  year = {1992},
  number = {21},
  month = {1992-12-01},
  publisher = {Journal of the Illuminating Engineering Society},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910299},
  language = {en},
}