@misc{indiciae33032b62ed11,
  title = {Robust Control of Non-Passive Systems via Passification},
  author = {Kelkar, A. G. and Joshi, S. M.},
  year = {1997},
  url = {https://ntrs.nasa.gov/citations/20040110231},
  note = {Source identifier: 20040110231}
}