Thomas Breuel:Recent Progress on the OCRopus OCR System. In: Proceedings of the International Workshop on Multilingual OCR (=MOCR ’09). ACM, New York 2009, ISBN 978-1-60558-698-4, S.2:1–2:10, doi:10.1145/1577802.1577805.
Adnan Ul-Hasan, Thomas M. Breuel:Can We Build Language-independent OCR Using LSTM Networks? In: Proceedings of the 4th International Workshop on Multilingual OCR (=MOCR ’13). ACM, New York, NY, USA 2013, ISBN 978-1-4503-2114-3, S.9:1–9:5, doi:10.1145/2505377.2505394.
T. M. Breuel, A. Ul-Hasan, M. A. Al-Azawi, F. Shafait:High-Performance OCR for Printed English and Fraktur Using LSTM Networks. In: 2013 12th International Conference on Document Analysis and Recognition. August 2013, S.683–687, doi:10.1109/ICDAR.2013.140.
Thomas M. Breuel:The OCRopus open source OCR system. Band6815. International Society for Optics and Photonics, 28.Januar 2008, S.68150F, doi:10.1117/12.783598.