@misc{indiciae8b01328186ca,
  title = {Integrating contours within and through depth.},
  author = {R F Hess and A Hayes and F A Kingdom},
  year = {1997},
  doi = {10.1016/s0042-6989(96)00215-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/9156213/},
  note = {Source identifier: 9156213}
}