@conference{721,
  author = {Peter Conti and R. Blum},
  title = {The giant H II region W 49A: A starbirth cluster},
  year = {2002},
  month = {10/2002},
  publisher = {San Francisco, Astronomical Society of the Pacific},
  isbn = {1-58381-107-9},
  url = {http://adsabs.harvard.edu/full/2002ASPC..267..297C},
  note = {JILA Pub. 6762},
}