@misc{indiciae87411e274991,
  title = {Three-dimensional nonlinear invisible boundary detection.},
  author = {Maria Petrou and Vassili A Kovalev and Jürgen R Reichenbach},
  year = {2006},
  doi = {10.1109/tip.2006.877516},
  url = {https://pubmed.ncbi.nlm.nih.gov/17022267/},
  note = {Source identifier: 17022267}
}