1. Artstein, R., & Poesio, M. (2005). Kappa3 = alpha (or beta). Technical Report CSM-437, University of Essex Department of Computer Science.
2. Bangalore, S., Rambow, O., & Whittaker, S. (2000). Evaluation metrics for generation. In Proceedings of INLG 2000.
3. Belz, A., Gatt, A., Reiter, E., & Viethen, J. (2007). First NLG shared task and evaluation challenge on attribute selection for referring expression generation. http://www.csd.abdn.ac.uk/research/evaluation/
4. Belz, A., & Reiter, E. (2006). Comparing automatic and human evaluation of NLG systems. In Proceedings of EACL 2006 (pp. 313–320).
5. Belz, A., & Varges, S. (Eds.) (2005) Corpus linguistics 2005 workshop on using corpora for natural language generation.