All materials in the journal are distributed under the Creative Commons Attribution (CC-BY) licence.

By submitting an article, the author confirms that it does not infringe the rights of others, has not been previously published, and is not under consideration elsewhere.

The author retains copyright, while the publisher is granted the right of first publication, including translation, printing, and distribution in both print and electronic form.

In all cases, a proper bibliographic reference or hyperlink to the article’s electronic version on the journal’s website is required.