Index: reference.xml
===================================================================
--- reference.xml	(revision 4010)
+++ reference.xml	(working copy)
@@ -10519,14 +10519,19 @@
 		<title>Description</title>
 
 		<para>Returns the 2-dimensional maximum cartesian distance between two linestrings in
-		projected units.</para>
+		projected units. If g1 and g2 is the same geometry the function will return the distance between
+		the two vertices most far from eachother in that geometry.</para>
 
 	  </refsection>
 
 	  <refsection>
 		<title>Examples</title>
 
-		<programlisting>--ALL EXAMPLES current throw NOT YET IMPLEMENTED</programlisting>
+		<programlisting>postgis=# SELECT ST_Max_Distance('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry);
+   st_max_distance
+-----------------
+ 2
+(1 row)</programlisting>
 	  </refsection>
 
 	  <refsection>