Hello,

The bibliography should be cited by \cite, not \ref.

The modified texmacs file attached works with your .bib file.

Best wishes,

On 11/08/2019, Jorge Fernández de Cossío Díaz wrote:
> Can someone take a look at the attached files?
> It's a very simple example where I can't get the automatic
> bibliography to work.
> What am I doing wrong?
>
> Thanks.

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Best wishes!
Yours,