@misc{indiciaea9cfb3869eb3,
  title = {Thermospheric gravity waves - Observations and interpretation using the transfer function model (TFM)},
  author = {Mayr, H. G. and Harris, I. and Herrero, F. A. and Spencer, N. W. and Varosi, F. and Pesnell, W. D.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910038276},
  note = {Source identifier: 19910038276}
}