@misc{indiciae606b63e0cc36,
  title = {A test of a modified algorithm for computing spherical harmonic coefficients using an FFT},
  author = {Elowitz, Mark and Hill, Frank and Duvall, Thomas L., Jr.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890047279},
  note = {Source identifier: 19890047279}
}