@misc{indiciaef9d131eb6666,
  title = {Perspective drawings of molecular structures by computer.},
  author = {P Polihroniadis and W J Perkins and E A Piper},
  year = {1973},
  doi = {10.1016/0010-4809(73)90026-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/4773182/},
  note = {Source identifier: 4773182}
}