@InProceedings{Doermann1993c,
  author    = {Doermann, David S. and Rosenfeld, Azriel},
  booktitle = {2ⁿᵈ International Conference on Document Analysis and Recognition (icdar'93)},
  title     = {The Processing of Form Documents},
  year      = {1993},
  pages     = {497--501},
  publisher = {IEEE},
}