XPATH question

Hi,

I have an old HTML file containing biblography that should be converted
to a XML database.
I'd like to write a XSLT sheet that helps me doing this conversion. 
The entrys basicly look like

<li>Author, Author, Author (year): <br/>
    <b>title</b>
    ...

So I'd like to have the contents of the li tag _before_ the <br> line
break.
Can I do this with a XPath expression?

  Sven.....


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