@misc{indiciae052ef797fecf,
  title = {Optimal control of singularly perturbed nonlinear systems with state-variable inequality constraints},
  author = {Calise, A. J. and Corban, J. E.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900060648},
  note = {Source identifier: 19900060648}
}