All materials on this site and additional websites owned as well as operated by our establishment have copyrights or employed with permission. You should presume that whatever you see or read within this internet site or another web-site held or operated through our company is copyrighted, if not differently said. The material shall not be used without the written permission of the company.

This composition is copyright protected. You may download, display, print and copy this material in unchanged fashion only for your personal, non-commercial usage or usage in your workplace. Besides anyuse as allowed under the Copyright Act 1968, all other rights are protected. In the event of any permitted duplication, redistribution or issuing of copyrighted material, no modifications in or deletion of creator attribution, trademark legend or copyright notice shall be done. The surfer acknowledges that it does not acquire any ownership rights by downloading copyrighted material.

Abstracting with recognition is allowed. Ignoring these terms will be an infringement of the laws of the U.S., and of the Berne convention.