Dan S. Bloomberg Kris Popat Thomas P. Minka Document Image Decoding Using Iterated Complete Path Search with Subsampled Heuristic Scoring. 344-349 2001 conf/icdar/2001 ICDAR http://computer.org/proceedings/icdar/1263/12630344abs.htm db/conf/icdar/icdar2001.html#BloombergPM01