DOCBOOK: Markup for bibliography and citation

["M. Wroth" <mark@astrid.upland.ca.us>]

I've been having trouble getting what I would consider correct output
from several elements related to bibliography and citation, and I believe
the issue is that I don't really understand how to use the relevant
DocBook markup.

The basic issue is that I have a <bibliography>, composed of a
number of <bibliographyelements>.  In the text of the document
(which is an <article>, if that's significant), I want to refer to
specific locations within the cited work. My processing expectation for
this would be something like

We can see from this example (Roesdahl, figure 27) that the use of morticed backs...

although I'm not hung up on details.

 <xref> by itself does not seem to have any place to provide
the specific location, so my immediate inclination is to use something
like

We can see from this example <citation><xref linkend-"roesdahl">, figure 27</citation> that the use of morticed backs...

Given the style sheets I'm using (which include some customization),
this is not producing what I expect.  Before I start mucking with
the customization layer, I would like to be sure I understand the
underlying markup correctly. Is this the right markup for this
situation?

The second issue is the markup of some of the bibliography
elements;  specifically, I have a book that has a single author, but
credits the illustrator as well.  My first cut at the markup looked
like this

    <biblioentry id="simpson">
      <authorgroup>
        <author>

        

<firstname>Jacqueline</firstname>

        

<surname>Simpson</surname>
        </author>

        

<othercredit>

        

<contrib>Drawings by</contrib>

        

<firstname>Eva</firstname>

        

<surname>Wilson</surname>

        

<contrib>Drawings</contrib>

        

</othercredit>
      </authorgroup>
      <title>Everyday Life in the Viking
Age</title>
      <publisher>

        

<publishername>Dorset</publishername>

        

<address>New
York</address>
      </publisher>
      <pubdate>1967</pubdate>
    </biblioentry>

However, the author/illustrator pair is coming out oddly; by changing the
first part of the bibliographyentry to

     <biblioentry id="simpson">
        <author>

        

<firstname>Jacqueline</firstname>

        

<surname>Simpson</surname>
        </author>
      <authorgroup>

        

<othercredit>

        

<contrib>Drawings by</contrib>

        

<firstname>Eva</firstname>

        

<surname>Wilson</surname>

        

<contrib>Drawings</contrib>

        

</othercredit>
      </authorgroup>
      <title>Everyday Life in the Viking
Age</title>
      <publisher>

        

<publishername>Dorset</publishername>

        

<address>New
York</address>
      </publisher>
      <pubdate>1967</pubdate>
    </biblioentry>

(that is, moving the primary author out of the authorgroup), I get an
output that seems reasonable.  Is this what is expected?

The markup is DocBook 4.1.

Mark B. Wroth
<mark@astrid.upland.ca.us>