@misc{indiciaed1415a2fc368,
  title = {[A method using a computer for tracing isovalent curves].},
  author = {J Pernier and R Bruckert and G Maraval and F Perrin and J F Echallier},
  year = {1977},
  doi = {10.1016/0020-7101(77)90013-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/863540/},
  note = {Source identifier: 863540}
}