Letter from the Editor

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

The authors, by publishing in this journal, accept the following terms: 

1. The authors will retain their copyrights and will guarantee the journal the right of first publication of their work, which will be simultaneously subject to the Creative Commons Acknowledgement License that allows third parties to share the work as long as its author and its first publication in this journal are indicated.
2. Authors may adopt other non-exclusive license agreements for the distribution of the published version of the work, thus being able to publish it in a monographic volume or reproduce it in other ways, provided that the initial publication in this journal is indicated.
3. Authors are allowed and encouraged to disseminate their work via the Internet:
1. Before journal submission, authors can deposit the manuscript in preprint servers/repositories, including arXiv, bioRxiv, figshare, PeerJ Preprints, and SSRN, among others, which can produce interesting exchanges and increase citations of the published work (See The effect of open access).
2. After submission, it is recommended that authors deposit their article in their institutional repository, personal web page, or scientific social network (such as Zenodo, ResearchGate o Academia.edu).