@conference{ESM+12, author = {Daniel Esser and Daniel Schuster and Klemens Muthmann and Michael Berger and Alexander Schill}, title = {Automatic Indexing of Scanned Documents - a Layout-based Approach}, booktitle = {IS&T/SPIE Document Recognition and Retrieval XIX (DRR 2012)}, year = {2012}, note = {San Francisco, CA, USA} }