@misc{indiciaec6ea42a8b5f3,
  title = {Simplified system displays complex curves corresponding to input data},
  author = {Dertouzous, M. L. and Graham, H. L.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690000247},
  note = {Source identifier: 19690000247}
}