@misc{indiciaebfaacb03a2b2,
  title = {Impasse-Driven Tutoring for Reactive Skill Acquisition},
  author = {Johnson, W. Lewis and Hill, Randall W. Jr.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/20210001280},
  note = {Source identifier: 20210001280}
}