@article{9704,
  author = {Richard McCray and R. Stein and J. Schwarz},
  title = {Formation of Filaments in Fossil H II Regions},
  year = {1972},
  journal = {The Astrophysical Journal},
  volume = {177},
  pages = {L75},
  month = {Jan-11-1972},
  issn = {0004-637X},
  url = {http://adsabs.harvard.edu/full/1972ApJ...177L..75M},
  doi = {10.1086/181055},
}