@misc{indiciae32bc38fe4e06,
  title = {Spectral evolution of multiply-impulsive solar bursts},
  author = {Karpen, J. T. and Crannell, C. J. and Frost, K. J.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790005814},
  note = {Source identifier: 19790005814}
}