@inproceedings{bottou-2001,
  author = {Bottou, L\'{e}on and Haffner, Patrick and Cun}, Yann {Le},
  title = {Conversion of Digital Documents to Multilayer Raster Formats},
  booktitle = {Proceedings of the Sixth International Conference on Document Analysis and Recognition},
  month = {September},
  year = {2001},
  pages = {444-448},
  address = {Seattle},
  publisher = {IEEE},
  url = {http://leon.bottou.org/papers/bottou-2001},
}