"\seetext{...}" instead of "\seetext ...".
\end{datadesc}
\begin{seealso}
-\seetext Jeffrey Friedl, \emph{Mastering Regular Expressions},
+\seetext{Jeffrey Friedl, \emph{Mastering Regular Expressions},
O'Reilly. The Python material in this book dates from before the re
module, but it covers writing good regular expression patterns in
-great detail.
+great detail.}
\end{seealso}
\end{datadesc}
\begin{seealso}
-\seetext Jeffrey Friedl, \emph{Mastering Regular Expressions},
+\seetext{Jeffrey Friedl, \emph{Mastering Regular Expressions},
O'Reilly. The Python material in this book dates from before the re
module, but it covers writing good regular expression patterns in
-great detail.
+great detail.}
\end{seealso}