@inproceedings{Codognet99,
  title = {An Historical Account of Indexical Images: from Ancient Art to the Web},
  author = {Philippe Codognet},
  year = {1999},
  url = {http://computer.org/proceedings/vl/0216/02160104abs.htm},
  researchr = {https://researchr.org/publication/Codognet99},
  cites = {0},
  citedby = {0},
  pages = {104-110},
  booktitle = {VL},
}