@misc{indiciae4a3f766a8c8b,
  title = {International Sun-Earth Explorer - A three-spacecraft program},
  author = {Ogilvie, K. W. and Von Rosenvinge, T. and Durney, A. C.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780026434},
  note = {Source identifier: 19780026434}
}