WebAnno: A Flexible, Web-based and Visually Supported System for Distributed Annotations Seid Muhie Yimam author Iryna Gurevych author Richard Eckart de Castilho author Chris Biemann author 2013-08 text Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics: System Demonstrations Miriam Butt editor Sarmad Hussain editor Association for Computational Linguistics Sofia, Bulgaria conference publication yimam-etal-2013-webanno https://aclanthology.org/P13-4001/ 2013-08 1 6