Open access

*The journal provides instant, FREE ACCESS to all published texts in accordance with the principle that freely available research increases and accelerates the global development of science and the exchange of knowledge.

*All texts published on the journal’s website are made available under Creative Commons sublicenses. License (CC-BY-NC-ND): Attribution – Non-commercial use – No derivative works 4.0 (https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl).

*The journal does not charge the authors ANY FEES related to the procedure of submitting and editing texts.

*Information about the license can be found on the journal’s website – and it is approved before publication when the text is sent by the author.

*The author signs a Statement according to which he transfers the rights to the work to the Publisher. The author understands and accepts that the Publisher will make the work available under Creative Commons free licenses (CC-BY-NC-ND): Attribution – Non-commercial use – No derivative works 4.0 as available at https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl or another language version of this license or any of the later versions of this license, published by Creative Commons.

*The editorial office encourages the authors to make the ARTICLES IN THE FINAL VERSION published on the journal’s website available in open repositories and scientific profiles with the correct identification of authorship, source and license. The editorial office also recommends providing an identifier belonging to the publication.