@article{5733,
  author = {M. Dopita and R. Sutherland},
  title = {Spectral Signatures of Fast Shocks. II. Optical Diagnostic Diagrams},
  year = {1995},
  journal = {The Astrophysical Journal},
  volume = {455},
  pages = {468},
  month = {Jan-12-1995},
  issn = {0004-637X},
  url = {http://adsabs.harvard.edu/full/1995ApJ...455..468D},
  doi = {10.1086/176596},
}