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1        COPYRIGHT

 1.1 Copyright belongs to the Universidad Francisco de Vitoria and it is necessary to gain permission from this institution for any reproduction. To this end, the authors must sign a transfer of rights agreement and a declaration of conflict of interests. This is a necessary requirement for the publication of the article. In any case it will be necessary to indicate the origin of any total or partial reproduction.

  1.2 The UFV retains the copyright of published works, and favours and enables the reuse of the same under the license of use indicated in Creative Commons.