@misc{indiciae81c186500ac4,
  title = {Optimal control of linear time-delay systems},
  author = {Aggarwal, J. K. and Banks, H. T. and Eller, D. H.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700049119},
  note = {Source identifier: 19700049119}
}