@misc{indiciae986effa0a398,
  title = {Hierarchical representation and machine learning from faulty jet engine behavioral examples to detect real time abnormal conditions},
  author = {Gupta, U. K. and Ali, M.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19890040251},
  note = {Source identifier: 19890040251}
}