@misc{indiciae98bd15ad9c39,
  title = {Necessary and sufficient conditions under which an H2 optimal control problem has a unique solution},
  author = {Chen, Ben M. and Saberi, Ali},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930069757},
  note = {Source identifier: 19930069757}
}