Open Access (OA) articles are published under a Creative Commons license:
  Creative Commons Attribution 4.0 International License.

The journal provides immedaite, open access (CC BY-4.0 International) to all journal content, following the principle that freely accessible research enhances and accelerates global scientific development and knowledge exchange.
The Author(s) retains copyright to their article and the right to freely dispose of the work, granting Adam Mickiewicz University in Poznań a non-exclusive, royalty-free licence under the Creative Commons Attribution 4.0 International License. The editors encourage authors to submit articles published in the journal to open access repositories as long as they provide a link to the journal's website and the DOI number of the article.

The journal does not charge the authors any fees related to the process of publication.