diff --git a/udf-catalogue.tex b/udf-catalogue.tex
index 3779e53..6b0efec 100644
--- a/udf-catalogue.tex
+++ b/udf-catalogue.tex
@@ -450,9 +450,6 @@ \subsubsection{ivo\_geom\_transform(from\_sys, to\_sys, geo)}
 \example \verb|ivo_geom_transform('FK4', 'GALACTIC', CIRCLE(189.70303055, 22.96240006, 3))|
 \becomes \verb|[275.00025405, 84.99996154, 3]|.
 
-\example \verb|ivo_geom_transform('FK4', 'GALACTIC', CIRCLE(189.70303055, 22.96240006, 3))|
-\becomes \verb|[275.00025405, 84.99996154, 3]|.
-
 \example \verb|ivo_geom_transform('GALACTIC', 'FK5', POLYGON(5, 3, 4, 4, 4.5, 2))|
 \becomes \verb|[266.44721, -23.107310, 264.95088, -23.434037, 267.09936, -24.051919]|.
 \end{examples}
@@ -897,7 +894,7 @@ \subsubsection{ivo\_hms\_to\_degrees(hms)}
 \item[Parameters]
 
 \begin{args}
-	\arg hms (TEXT) -- hms to be converted. The following syntaxes must be accepted: 'h:m:s', 'hhmmss' and 'hHmMsS'. Hours and minutes should be integer and seconds can be decimal. The function returns NULL on unparsable input.
+	\arg hms (TEXT) -- hms to be converted. The following syntaxes must be accepted: `{\it h}{\tt :}{\it m}{\tt :}{\it s}', `{\it h}{\tt h}{\it m}{\tt m}{\it s}{\tt s}' and `{\it h}{\tt H}{\it m}{\tt M}{\it s}{\tt S}'. Hours and minutes should be integer and seconds can be decimal. The function returns NULL on unparsable input.
 \end{args}
 
 \item[Return type] \texttt{REAL}
@@ -927,7 +924,7 @@ \subsubsection{ivo\_dms\_to\_degrees(dms)}
 \item[Parameters]
 
 \begin{args}
-	\arg dms (TEXT) -- dms to be converted. The following syntaxes must be accepted: 'd:m:s', 'ddmmss' and 'dDmMsS'. Degrees and minutes should be integer and seconds can be decimal. A preceding + or - sign is allowed.
+	\arg dms (TEXT) -- dms to be converted. The following syntaxes must be accepted: `{\it d}{\tt :}{\it m}{\tt :}{\it s}', `{\it d}{\tt d}{\it m}{\tt m}{\it s}{\tt s}' and `{\it d}{\tt D}{\it m}{\tt M}{\it s}{\tt S}'. Degrees and minutes should be integer and seconds can be decimal. A preceding + or - sign is allowed.
 \end{args}
 
 \item[Return type] \texttt{REAL}