@incollection{2007,
  doi = {10.1117/3.764682.p109},
  url = {http://dx.doi.org/10.1117/3.764682.p109},
  year = {2007},
  month = {aug},
  publisher = {{SPIE}-Intl Soc Optical Eng},
  pages = {109--109},
  title = {{Small Target Visibility}},
  booktitle = {Field Guide to Illumination},
}