@article{9843,
  author = {D. Lauterborn},
  title = {The Interaction between Core and Envelope in Stars with Central Helium Burning},
  year = {1973},
  journal = {Astronomy and Astrophysics},
  volume = {24},
  chapter = {421},
  pages = {421-427},
  url = {http://adsabs.harvard.edu/full/1973A\%26A....24..421L},
  note = {<p>JILA Pub. 914</p>},
}