@misc{indiciaec2acfcd55f9b,
  title = {Edge detection - Image-plane versus digital processing},
  author = {Huck, Friedrich O. and Fales, Carl L. and Park, Stephen K. and Triplett, Judith A.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880034395},
  note = {Source identifier: 19880034395}
}