Reul, Christian, Uwe Springmann, Christoph Wick, and Frank Puppe. 2018. “Improving OCR Accuracy on Early Printed Books by Combining Pretraining, Voting, and Active Learning”. Journal for Language Technology and Computational Linguistics 33 (1):3-24. https://doi.org/10.21248/jlcl.33.2018.216.