@misc{indiciaeff31d53141bf,
  title = {A hybrid symbolic/finite-element algorithm for solving nonlinear optimal control problems},
  author = {Bless, Robert R. and Hodges, Dewey H.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920046679},
  note = {Source identifier: 19920046679}
}