@misc{indiciaea1ea00ffb3ce,
  title = {Decision Tree Rating Scales for Workload Estimation: Theme and Variations},
  author = {Wietwille, W. W. and Skipper, J. H. and Rieger, C. A.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19850006232},
  note = {Source identifier: 19850006232}
}