@misc{indiciae601f722bb1b6,
  title = {Synthesis of a time optimal control for a second order nonlinear process},
  author = {Boettiger, A. and Haas, V. B.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700050192},
  note = {Source identifier: 19700050192}
}