| Primary | Swapna Somasundaran and Janyce Wiebe (2009). Recognizing Stances in Online Debates. ACL-IJCNLP 2009. |
| Supplementary | Walker, M. and Anand, P and Abbott, R. and Tree, J.E.F. and Martell,C. and King, J. (2011). That's your evidence:? Classifying Stance in Online Political and Social Debate. Decision Support Sciences. 1-30. Elsevier. 2011 |
| Supplementary | Thomas, Matt and Pang, Bo and Lee, Lillian. (2006). Get out the vote: Determining support or opposition from Congressional floor-debate transcripts, in
Proceedings of EMNLP, pp. 327--335. |
| Secondary | Park, Souneil and Lee, Kyung Soon and Song, Junehwa (2011). Contrasting Opposing Views of News Articles on Contentious Issues. ACL-2011. |
| Supplementary | Abu-Jbara, Amjad and Dasigi, Pradeep and Diab, Mona and Radev, Dragomir (2011). Subgroup Detection in Ideological Discussions. ACL-2011. |