@misc{indiciaef08ebf7f0c3f,
  title = {Oscillations in stellar atmospheres},
  author = {Costa, A. and Ringuelet, A. E. and Fontenla, J. M.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890048882},
  note = {Source identifier: 19890048882}
}