@misc{indiciae499c59f60e41,
  title = {Manned spaceflight activity planning with knowledge-based systems},
  author = {Mogilensky, J. and Dalton, R. E. and Scarl, E. A.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19840027248},
  note = {Source identifier: 19840027248}
}