@misc{indiciae1b67b229acf7,
  title = {Function-space quasi-Newton algorithms for optimal control problems with bounded controls and singular arcs},
  author = {Edge, E. R. and Powers, W. F.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770039325},
  note = {Source identifier: 19770039325}
}