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Terms of use

1. The contents of all pages on and its subdomains is protected by copyright.

2. The contents mentioned in 1. may be used in an unchanged form for:

- the purpose of archiving on hard drives, optical discs or on paper

- documentation and presentation of technical subjects with the declaration of the source and month and year of information retrieval

- usage or reference of single pages and / or elements in form of quotation with the declaration of the referring URL (e.g. )

3. The contents mentioned in 1. may only be used and / or changed for publication, printing, etc. with my written approval.

4. A link is a dynamic reference. At the time of defining the link, the content of the referring pages have been checked for a possible violation of any law. There is no obligation to continuously check linked pages in reference to changes, which may violate a law at a later point in time. A link may only be removed as soon as the violation of any law got to my knownledge and only if the removal of the link is technically possible and reasonable.