@misc{indiciae93bd8ce5a075,
  title = {Solar pulsations and long-term solar variability},
  author = {Goode, P. R. and Logan, J. D. and Hill, H. A.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820009162},
  note = {Source identifier: 19820009162}
}