@misc{indiciae4e3f62e17f0d,
  title = {A prospectus for a theory of variable variability},
  author = {Childress, S. and Spiegel, E. A.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820009167},
  note = {Source identifier: 19820009167}
}