Swapna Somasundaran,
Josef Ruppenhofer and
Janyce Wiebe. Discourse level opinion relations : an annotation study. In Proceedings of the 9th SIGdial Workshop on Discourse and Dialogue : ACL-08: HLT ; June 19-20, 2008, The Ohio State University Columbus, Ohio, USA, Pages 129–137, ACL, Stroudsburg, Pa., 2008. google Note: MP.
