Since it is back-end dependent, why don't you use:

  #+latex: \bibliography{...}\bibilographystyle{...}

instead?


To avoid duplication.

Org-bibtex/reftex need the line:
 
#+bibliography: foo plain
 
You need to set `ad-return-value' somewhere, don't you?

 
:-) This is what I was looking for. 

Thanks a lot!

Fabrice