@misc{indiciae25f8160ffd42,
  title = {Sub-optimal control of non-linear single input systems.},
  author = {Aggarwal, J. K. and Eller, D. H.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680054848},
  note = {Source identifier: 19680054848}
}