[O] Bibliography woes!

[Sharon Kimble]

I'm having no success in getting the bibliography to display in my
document, so these are my relevant settings -
╭────
│#+LaTeX_HEADER: \usepackage{biblatex}
│#+LaTeX_HEADER: \bibliography{/home/boudiccas/.emacs.d/research/references.bib}
│#+LaTeX_HEADER: \bibliography{references}
╰────
and I'm using XeTeX, Version 3.1415926-2.5-0.9999.3 (TeX Live 2013/Debian)

Where I want to have the bibliography is -
╭────
│* Bibliography
│\printbibliography
╰────

and I generate my .tex and .pdf files by "C-c C-e l p" but the
bibliography is not displayed in the pdf.

In the *messages* pane, is shown "Process completed with errors:
[undefined citation] [LaTeX error]"

And in "org-pdf-latex-output" it shows this -
--8<---------------cut here---------------start------------->8---
LaTeX Warning: Citation '4' on page 3 undefined on input line 139.


LaTeX Warning: Citation '5' on page 3 undefined on input line 141.


LaTeX Warning: Citation '4' on page 3 undefined on input line 149.


LaTeX Warning: Citation '6' on page 3 undefined on input line 158.

[3]

LaTeX Warning: Citation '7' on page 4 undefined on input line 171.
--8<---------------cut here---------------end--------------->8---

But "page 3" of what? "input line 139" of what?  Citation 3 is here
--8<---------------cut here---------------start------------->8---
@Article{,
  author =               {MacRae K. Pattison J.},
  title =                {Home chemotherapy.},
  journaltitle = {Nursing Times},
  year =         {2002},
  key =                  {3},
  volume =       {98},
  number =       {35},
  pages =        {34-35},
}
--8<---------------cut here---------------end--------------->8---

It all looks okay to me, except I cant see what the latex warnings
relate to. Any ideas folks please?

Thanks
Sharon.
-- 
A taste of linux = http://www.sharons.org.uk
my git repo = https://bitbucket.org/boudiccas/dots
TGmeds = http://www.tgmeds.org.uk
Debian testing, Fluxbox 1.3.5, emacs 24.4.50.19

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