Line break in docbook document

Question

I want to force a line break on some places in my docbook document, but I don't want to start a new paragraph. I have the following code:

<?xml version='1.0' encoding='UTF-8' standalone='no'?>
<book xmlns="http://docbook.org/ns/docbook" version="5.0" xmlns:xlink="http://www.w3.org/1999/xlink">
    <info><title>Some Project</title></info>
    <chapter>
        <title>Some Documentation</title>
<section>
    <title>aa.h File Reference</title>
<para>some text<sbr/>some more text</para>

<para>some text<literallayout>
</literallayout>some more text </para>
</section>
    </chapter>
</book>

Problem here is that the result with <literallayout> (in XMLMind and dblatex) has too much space (as if we have a new paragraph) and the the <sbr\> is (officially) not allowed here (but shown nicely in XMLMind and dblatex).

Any solutions / ideas?