@article{11100,
  author = {M. Vardya},
  title = {Electron pressure, negative ions and M-spectral type stars},
  year = {1966},
  journal = {The Observatory},
  volume = {86},
  pages = {32-34},
  url = {http://articles.adsabs.harvard.edu/full/1966Obs....86...32V},
  note = {JILA Pub. 189},
}