Hi Bernhard,

This is not an Oxygen issue, but an issue with using the DocBook stylesheets.  I would suggest you instead join the docbook-apps mailing list and post the question there.  That mailing list is described on this DocBook Wiki page:

https://github.com/docbook/wiki/wiki/DocBookAppsMailingList

That list also has an extensive archive with answers to questions from many users.

Bob Stayton
Sagehill Enterprises
bobs@sagehill.net

<chapter xmlns="http://docbook.org/ns/docbook"" xml:lang="de"
    xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:ns5="http://www.w3.org/2000/svg"
    xmlns:ns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
    version="5.1">
    <title>Nachtfalter</title>
    <para>Die bis Herbst 2018 fotografierten Nachtfalter
(Großschmetterlinge) gehören zu folgenden
        Schmetterlingsfamilien (in Klammern die Anzahl der bis Ende
Sept. 2018 gefundenen
        Arten):</para>
    <para><itemizedlist>
            <listitem>
                <para>Zygaenidae - Widderchen (6)<xref
linkend="Zygaenidae" xrefstyle="PageInParen"
                    /></para>
            </listitem>
        </itemizedlist>
    </para>

    <sect1 xml:id="Zygaenidae" xreflabel="">
        <title>Zygaenidae - Widderchen </title>
        <table frame="none">
            <title>Zygaenida</title>
            <tgroup cols="2" align="center">
                <tbody>

                    <row valign="middle" rowsep="0">
                        <entry>Beilfleck-Widderchen</entry>
                        <entry>Thymian/Bibernell-Widderchen</entry>
                    </row>
                </tbody>
            </tgroup>
        </table>
    </sect1>
</chapter>