Wikipedia Revision Toolkit: Efficiently Accessing Wikipedia’s Edit History Oliver Ferschke author Torsten Zesch author Iryna Gurevych author 2011-06 text Proceedings of the ACL-HLT 2011 System Demonstrations Sadao Kurohashi editor Association for Computational Linguistics Portland, Oregon conference publication ferschke-etal-2011-wikipedia https://aclanthology.org/P11-4017/ 2011-06 97 102