@incollection{step2008:2217,
 author = "Robaldo, Livio and Miltsakaki, Eleni and Hobbs, Jerry R.",
 title = "{Refining the Meaning of Sense Labels in PDTB: ``Concession''}",
 booktitle = "Semantics in Text Processing. STEP 2008 Conference Proceedings",
 editor = "Bos, Johan and Delmonte, Rodolfo",
 publisher = "College Publications",
 series = "Research in Computational Semantics",
 volume = "1",
 pages = "207--219",
 year = "2008",
 url = "http://www.aclweb.org/anthology/W08-2217"
}