I finally did it!!!!!!! (with your help of course).
Thank you.
A single doubt is left... the bibtex compilation is not performed during the exportation process, should be done manually, Am I write?
**** For completeness ****
$ cd ~/.emacs.d/
Either create the repository
$ git clone git://
orgmode.org/org-mode.git
$ cd org-mode
or update it
$ cd org-mode
$make up1
Then compile the sources
$ make all
$ sudo make install
After this... I followed the advice of Eric, open an emacs session without personal configuration
$ make vanilla
in the emacs session evaluate one line at the time, for that use =M-:=
(add-to-list 'load-path "contrib/lisp/")
(require 'ox-bibtex)
I did the work for me, however, the bibtex compilation should be done by hand.
Cheers.