All text information and graphic images
All text information and graphic images on the site are the intellectual property of Oleksiy Koval. Reprinting, reproduction in any form, distribution, including in translation, of any materials from the site are possible only with the written permission of the author.
When using documents
When using documents and related graphic images posted on the Site, the following requirements must be observed:
– Indicate that the copyright belongs to A.A. Koval.
– when reprinting materials, refer to the Site as the source of the publication and indicate other sources of information mentioned in the material. If the materials are placed on the Internet, you must make an active link to the Site;
– documents and related graphic images located on the Site may be used only for informational, non-commercial or personal purposes;
– any documents and related graphics posted on the Site must not be changed by anyone. way;
– any graphic images posted on the Site should not be used separately from the text that accompanies them.
Documents and related graphics
Documents and related graphics posted on the Site may contain inaccuracies or spelling errors. The information on the Site is changed periodically.
Copyright and Security
© 2009-2023 Oleksiy Koval. All rights reserved.