@article{743,
  author = {Roy Garstang},
  title = {Light pollution at Mount Wilson and at Palomar in 1931-32},
  year = {2002},
  journal = {The Observatory},
  volume = {122},
  pages = {154},
  month = {06/2002},
  url = {http://adsabs.harvard.edu/full/2002Obs...122..154G},
  note = {JILA Pub. 6809},
}