The NGO "Eastern European Union of Scientists" strictly adheres to the provisions of the Open Access policy. Access to the content of the official websites of the scientific journals of the Eastern European Union of Scientists is free, public, unlimited and free for any user. Visitors to the website can download, read, copy, send, print articles, refer to them, and use them for any non-commercial purposes permitted by applicable law without requesting permission from the publisher, editorial board, and/or author. The Archives section of the official websites of the journals provides full-text access to published articles in real-time. The provisions of the Budapest Open Access Initiative and the Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities form the editorial policy of open access.