@misc{indiciae70113d0741e7,
  title = {Time-optimal control of a bounded phase- coordinate process. II - High-order systems with multiple control inputs.},
  author = {Harvey, C. A. and Luh, J. Y. S. and Shafran, J. S.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680044917},
  note = {Source identifier: 19680044917}
}