@misc{indiciaeda089e333c0b,
  title = {Electrostatic emissions between electron gyroharmonics in the outer magnetosphere},
  author = {Hubbard, R. F. and Birmingham, T. J.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770020704},
  note = {Source identifier: 19770020704}
}