@misc{indiciae4d829ec8b3d0,
  title = {The X-ray Timing Explorer Mission},
  author = {Rothschild, Richard E. and Bradt, Hale V. and Swank, Jean H.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890037975},
  note = {Source identifier: 19890037975}
}