@misc{indiciaef2c946a6e20c,
  title = {X-33 Ascent Flight Controller Design by Trajectory Linearization: A Singular Perturbational Approach},
  author = {Zhu, J. Jim},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20020043212},
  note = {Source identifier: 20020043212}
}