@misc{indiciae4cf0e0131ae2,
  title = {Integrating knowledge and control into hypermedia-based training environments: Experiments with HyperCLIPS},
  author = {Hill, Randall W., Jr.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910012636},
  note = {Source identifier: 19910012636}
}