@misc{indiciae445e5703d25f,
  title = {The augmented Lagrangian method for parameter estimation in elliptic systems},
  author = {Ito, Kazufumi and Kunisch, Karl},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900036170},
  note = {Source identifier: 19900036170}
}