@misc{indiciaed8e1ac356607,
  title = {Using output to evaluate and refine rules in rule-based expert systems},
  author = {St.clair, D. C. and Bond, W. E. and Flachsbart, B. B.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880006980},
  note = {Source identifier: 19880006980}
}