Copyright

Most items in this repository are copyright © by their original authors/creators or by the publishers to whom those rights have been transferred.

Inclusion in this open-access online repository does not alter the copyright status of any document.

The holders of copyright are declared in most cases where they are known, and these are the parties who control the rights to further re-use of the materials. Users are free to download, save, and print materials found here for their own use. Users should not re-publish, re-post, or redistribute materials without permission of the holders of copyrights.