@misc{41086,
  author = {Belinda Collins and Daniel Madrzykowski},
  title = {Evaluation of Exit Signs in Clear and Smoke Conditions (NISTIR 4399)},
  year = {1990},
  month = {1990-08-01},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.4399},
  language = {en},
}