Unless and where stated otherwise, this website and its content is copyright of me, Frank Dörenberg, 1999-2016. All rights reserved worldwide. Any redistribution or reproduction of part or all of the contents in any form is prohibited. However, you may print and download extracts for your personal use, and you may copy the content to individual third parties for their personal use, but only if you acknowledge this website as the source of the material. You may not, except with my express written permission, distribute or commercially exploit the content. Nor may you transmit it or store it on any other website, or other form of electronic retrieval system. Photos and other images created by me, are available upon request at full resolution.

There is a certain amount of material on this website that was not created by me. I have stated the source of all such material, to the extent known to me.

In accordance with the Digital Millennium Copyright Act of 1998 (the text of which may be found on the U.S. Copyright Office website at http://lcweb.loc.gov/copyright/), the owner/operator of this website will respond expeditiously to claims of copyright infringement that are reported to the designated copyright agent. Please also note that under Section 512(F) of the aforementioned act, any person who knowingly materially misrepresents that material or activity is infringing, may be subject to liability. If you believe that specific material for which you are, or legally represent, the lawful copyright owner, is shown on this website in a way that constitutes copyright infringement in the sense of US law, please contact me.


  • The information contained in this website is for general information purposes only. It is subject to change without notice. While I try to keep the information up to date, complete, and correct, I can make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, or related graphics contained on the website, for any purpose. Any reliance you place on such information is therefore strictly at your own risk.
  • In no event will I be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from your use of this website.
  • This website includes links to other websites. These links are provided for your convenience to provide further information. They do not signify that I endorse them. Those websites are not under my control. I bear no responsibility their content and availability.
  • All trade marks reproduced in this website that are not the property of, or licensed to, the operator are acknowledged on the website. Nonetheless, if I may somehow have omitted to recognize your trademark, please contact me.


This website does not use "cookies". It also does not collect any data on its visitors - with one exception: the main page of this website shows a world map with the general location of the visitors' country. This is based on IP addresses. No other use is made of this information.

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©1999-2016 F. Dörenberg, unless stated otherwise. All rights reserved worldwide. No part of this publication may be used without permission from the author.