@misc{indiciaefbb1bc485b63,
  title = {Ion-acoustic waves in a plasma with negative ions},
  author = {Song, B. and D'Angelo, N. and Merlino, R. L.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910040021},
  note = {Source identifier: 19910040021}
}