@inproceedings{DBLP:conf/icdar/FanFT01,
  author    = {Liying Fan and
               Lixin Fan and
               Chew Lim Tan},
  title     = {Binarizing Document Image Using Coplanar Prefilter},
  booktitle = {ICDAR},
  year      = {2001},
  pages     = {34-38},
  ee        = {http://computer.org/proceedings/icdar/1263/12630034abs.htm},
  crossref  = {DBLP:conf/icdar/2001},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/icdar/2001,
  title     = {6th International Conference on Document Analysis and Recognition
               (ICDAR 2001), 10-13 September 2001, Seattle, WA, USA},
  booktitle = {ICDAR},
  publisher = {IEEE Computer Society},
  year      = {2001},
  isbn      = {0-7695-1263-1},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}