@article{11640,
  author = {P. Swings},
  title = {Venus Through a Spectroscope},
  year = {1969},
  journal = {Proceedings of the American Philosophical Society},
  volume = {113},
  pages = {229-246},
  url = {http://www.jstor.org/stable/985738},
  note = {JILA Pub. 503},
}