@misc{indiciae56cf07b80f11,
  title = {A subroutine to represent tridimensional surfaces on a printer.},
  author = {J Dirkx and P Dufour},
  year = {1975},
  doi = {10.1016/0010-468x(75)90027-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/1164842/},
  note = {Source identifier: 1164842}
}