1. Pang, B., Lee, L.: Opinion Mining and Sentiment Analysis. Foundations and Trends in Information Retrieval 2(1-2), 1–135 (2008)
2. Balahur, A., Lloret, E., Ferrández, O., Montoyo, A., Palomar, M., Muñoz, R.: The DLSIUAES Team’s Participation in the TAC 2008 Tracks. In: Proceedings of the Text Analysis Conference 2008 Workshop, Washington, USA (2008)
3. Thomas, M., Pang, B., Lee, L.: Get out the vote: Determining support or opposition from Congressional floor-debate transcripts. In: Proceedings of EMNLP 2006 (2006)
4. Mullen, T., Malouf, R.: A preliminary investigation into sentiment analysis of informal political discourse. In: AAAI Symposium on Computational Approaches to Analysing Weblogs (AAAI-CAAW), pp. 159–162 (2006)
5. Turney, P., Mullen, T., Malouf, R.: A preliminary investigation into sentiment analysis of informal political discourse. In: Proceedings of the AAAI Symposium on Computational Approaches to Analysing Weblogs (AAAI-CAAW 2002) (2002)