GML transformation

Hello,
I have a valid GML file descriped follow, it was validated by xmlspy. I want to transform it to SVG format using xslt but I m newbie in xsl language.
follow the xsl file that I writed but it cant give me a good result .
from this can any one see this two file to help me to represent the gml file.
thanks advanced.
------------------------------------------------
the gml file
------------------------------------------------

<?xml version="1.0" encoding="UTF-8"?>
<!-- File: cambridge.xml -->
<CityModel xmlns="http://www.opengis.net/examples" 
           xmlns:gml="http://www.opengis.net/gml" 
           xmlns:xlink="http://www.w3.org/1999/xlink" 
           xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance" 
           xsi:schemaLocation="http://www.opengis.net/examples /u/pkg/gml4j/test/schemas/City.xsd">

  <gml:name>Cambridge</gml:name>
  <gml:boundedBy>
    <gml:Box srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
      <gml:coordinates>0.0 0.0,100.0 100.0</gml:coordinates>
    </gml:Box>
  </gml:boundedBy>

  <cityMember>
    <River>
      <gml:description>The river that runs through Cambridge.</gml:description>
      <gml:name>Cam</gml:name>
      <gml:centerLineOf>
        <gml:LineString srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
          <gml:coordinates>0 50,70 60,100 50</gml:coordinates>
        </gml:LineString>
      </gml:centerLineOf>
    </River>
  </cityMember>

  <cityMember>
    <Road>
      <gml:name>M11</gml:name>
        <linearGeometry>
          <gml:LineString srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
            <gml:coordinates>0 5.0,20.6 10.7,80.5 60.9</gml:coordinates>
          </gml:LineString>
        </linearGeometry>
      <classification>motorway</classification>
      <number>11</number>
    </Road>
  </cityMember>

  <cityMember xlink:type="simple" xlink:title="Trinity Lane" 
    xlink:href="http://www.foo.net/cgi-bin/wfs?FeatureID=C10239" 
    gml:remoteSchema="city.xsd#xpointer(//complexType[@name='RoadType'])"/>
  <cityMember>
    <Mountain>
      <gml:description>World's highest mountain is in Nepal!</gml:description>
      <gml:name>Everest</gml:name>
      <elevation>8850</elevation>
    </Mountain>
  </cityMember>
  <dateCreated>2000-11</dateCreated>
</CityModel>


------------------------------------------------
the xsl file
------------------------------------------------<?xml version="1.0"?>
<!DOCTYPE xsl:stylesheet SYSTEM "C:\Documents and Settings\ines\Bureau\exemple3\Untitled2.dtd">
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xlink="http://www.w3.org/TR/xlink" xmlns:gml="http://www.opengis.net/gml" xmlns:redirect="org.apache.xalan.xslt.extensions.Redirect" xmlns:mur="murmur" extension-element-prefixes="mur">
	<xsl:output method="xml" doctype-system="D:\mesrecherchesmastere\svg\DTD\svg10.dtd" doctype-public="-//W3C//DTD SVG 20000303 Stylable//EN"/>
	<xsl:variable name="boxCoord" select="//gml:Box/gml:coordinates/."/>
	     <xsl:template match="//gml:centerLineOf/gml:LineString/gml:coordinates">
		<xsl:variable name="clist" select="."/>
		<xsl:variable name="tclist" select="normalize-space($clist)"/>
		<xsl:template match="/">
			<xsl:variable name="boxCoord"></xsl:variable>
			<xsl:template match="/">
		<svg xml:space="preserve" viewBox="{$boxCoord}">
			<xsl:apply-templates/>
		</svg>
	</xsl:template>	
	</xsl:template>	
	</xsl:template>	
</xsl:stylesheet>




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