@misc{indiciae5157643c32e8,
  title = {An expert system for scheduling requests for communications Links between TDRSS and ERBS},
  author = {Mclean, David R. and Littlefield, Ronald G. and Beyer, David S.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19890000694},
  note = {Source identifier: 19890000694}
}