1. ACE. 2008. ACE (Automatic Content Extraction) English Annotation Guidelines for Entities. LDC. Version 6.6.
2. Androutsopoulos, Ion and Maria Aretoulaki. 2003. Natural Language Interaction. In R. Mitkov, ed., The Oxford Handbook of Computational Linguistics, chap. 35, pages 629–649. Oxford University Press.
3. Björkenstam, Kristina Nilsson and Emil Byström. 2012. SUC-CORE: SUC 2.0 Annotated with NP Coreference. In Proceedings of SLTC 2012. The Fourth Swedish Language Technology Conference. Lund, Sweden.
4. Bonelli, E.T. and J. Sinclair. 2006. Corpora. In K. Brown, ed., Encyclopedia of Language and Linguistics, pages 206–220. Oxford: Elsevier, 2nd edn.
5. Borthen, Kaja. 2004a. Annotation scheme for BREDT. Version 1.0. Tech. rep., University of Bergen.