A reviewer is requested to follow the below listed principles:

• to caution about any conflict of interests before the reviewing;
• to keep the materials reviewed and their evaluation confidential out of the frames of the reviewing;
• to develop a specified, substantiated, and correct review containing constructive and functional recommendations on how to  improve the text reviewed;
• to follow reviewing deadlines contracted with the editor’s board;
• to duly and promptly inform the editor’s board about the fact that he/she is not enough qualified for the reviewing or is unable to develop the review before the deadline;
• to inform the editors that he/she is enough informed to claim that the work presented contains false data, plagiary and borrowings.