Add missing references.

events.tex

@@ -2,7 +2,7 @@
 \section{Events}
 \label{sec:events}
 
-@@TODO: intro about events\\
+% @@TODO: intro about events\\
 
 \subsection{Time expressions}
 \label{sec:time-expressions}
@@ -13,8 +13,8 @@ \subsection{Time expressions}
 expression. The \texttt{<timex3>} in NAF have the same semantics as
 TimeML. The only difference is that TimeML inserts \texttt{<timex3>}
 elements along with the running text in the document, wheras NAF uses a
-stand-off approach. Please refer to TimeML specification document (@@ref)
-for further information.
+stand-off approach. Please refer to TimeML specification document
+\cite{isotimeml} for further information.
 
 The \texttt{<timex3>} element has the following attributes:
 \begin{itemize}

naf.bib

@@ -64,3 +64,28 @@ @inproceedings{hel:leh:aue:brue:13
 year = {2013}
 }
 
+@inproceedings{Baker+'98,
+    author = " Baker, Colin and Fillmore, Charles and Lowe, John B.",
+    title = " The Berkeley FrameNet project",
+    booktitle = "COLING/ACL'98",
+    address = " Montreal, Canada",
+    year = "1997" 
+}
+
+@inproceedings{propbank02,
+ author    = {Kingsbury, Paul and  Palmer, Martha},
+  title     = {Proceedings of the Third International Conference on Language
+               Resources and Evaluation, LREC 2002, May 29-31, 2002, Las
+               Palmas, Canary Islands, Spain},
+  booktitle = {LREC},
+  publisher = {European Language Resources Association},
+  year      = {2002}
+}
+
+@inproceedings{isotimeml,
+	Author = {Pustejovsky, James and Kiyong Lee and Harry Bunt and Laurent Romary},
+	Booktitle = {Proceedings o the Fifth International Workshop on Interoperable Semantic Annotation},
+	Date-Added = {2013-02-28 11:32:24 +0100},
+	Date-Modified = {2013-02-28 11:33:03 +0100},
+	Title = {{ISO-TimeML: An international standard for semantic annotation}},
+	Year = {2010}}

srl.tex

@@ -13,7 +13,7 @@ \section{Semantic Role Labeling}
   starting with the prefix ``pr''.
 \item \texttt{uri} (optional): An URI to an external resource representing the model of
   an event/predicate. For instance, it could be a reference to a frame in
-  \emph{FrameNet} (@@rref), \texttt{PropBank} (@@rref), etc.
+  \emph{FrameNet} \cite{Baker+'98}, \texttt{PropBank} \cite{propbank02}, etc.
 \item \texttt{confidence} (optional): a floating number between 0 and
   1. Indicates the confidence weight of the association.
 \end{itemize}