@misc{1150056,
  author = {Belinda L Collins and Mubarak S Dahir and Daniel Madrzykowski},
  title = {Evaluation of exit signs in clear and smoke conditions:},
  year = {1990},
  month = {1990-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.4399},
  language = {en},
}