@misc{indiciaef102d58da132,
  title = {Manual control system performance with quickened display, state variable display, and display gains},
  author = {Muckler, F. A. and Obermayer, R. W.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680006445},
  note = {Source identifier: 19680006445}
}