@misc{indiciae1131c6baee98,
  title = {Measurement of pilot describing functions in single-controller multiloop tasks},
  author = {Craig, S. J. and Stapleford, R. L. and Tennant, J. A.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690006040},
  note = {Source identifier: 19690006040}
}