Copyright notice

The authors who publish in this journal agree to the following terms:

1. The authors reserve the right to authorship of their work and give the journal the right to first publish this work with the permission for others to freely distribute the published work with the obligatory reference to the authors of the original work and the first publication of the work in this journal.
2. In accordance with international copyright law on electronic information resources, the electronic version of the journal may not be reproduced in whole or in part in any form (electronic copy or printout), distributed, used for commercial purposes without the prior written consent of the editorial staff.
3. Using the published materials in the context of other documents should refer to the original source.