@misc{indiciaec68d6fe3ccd8,
  title = {Conic sectors for sampled-data feedback systems},
  author = {Thompson, P. M. and Stein, G. and Athans, M.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19840033137},
  note = {Source identifier: 19840033137}
}