@misc{indiciae19523166d99a,
  title = {Temporal and contextual knowledge in model-based expert systems},
  author = {Toth-Fejel, Tihamer and Heher, Dennis},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880006981},
  note = {Source identifier: 19880006981}
}