@article{10734,
  author = {G. Wallerstein},
  title = {The behavior of H-alpha in Delta Cephei},
  year = {1979},
  journal = {Publications of the Astronomical Society of the Pacific},
  volume = {91},
  pages = {772},
  month = {Jan-12-1979},
  issn = {0004-6280},
  url = {http://articles.adsabs.harvard.edu/full/1979PASP...91..772W},
  doi = {10.1086/130585},
}