1. Website content The author does not guarantee that the information provided is current, nor does he guarantee the correctness, completeness or quality of the available information. Liability claims against the author, with reference to damages of a material or ideal character which were caused by the use or non-use of the information presented and/or by the use of incorrect or incomplete information, are absolutely precluded if no verifiable deliberate or grossly negligent fault is present on the part of the author. All offers made are subject to confirmation and are not binding. The author expressly reserves the right to change, to supplement, to delete parts of the sites or the entire material on the site without prior announcement or to stop the publication occasionally or finally. 2. References and links With direct or indirect references to external web pages (" Hyperlinks") which lie outside the author's area of responsibility, an author's liability would have effect only if the author has knowledge of the contents and if it is technically possible and reasonable for him to prevent their use in the case of illegal content. The author hereby expressly declares that, at the time of the link setting, no illegal contents were to be found on the sites which can be accessed. The author does not have any influence on the current and future organization, content or the authorship of external sites. Therefore he dissociates himself hereby expressly from all content of all external sites which were changed after the link setting. This statement is valid for all links and references which were set within the author's own Internet pages, as well as for external entries in guest books arranged by the author, discussion forums, link listings, mailing lists and in all other forms of data bases, to which external written access is possible. For illegal, incorrect or incomplete content and in particular for damage occurring from the use or non-use of such kinds of presented information, only the supplier of the site to which there is a link is responsible and not the author of the site which refers with links to the respective publication. 3. Copyright and Trademark Law In all publications, the author takes every care to respect the copyright of the diagrams, audio documents, video sequences and texts; to use his own diagrams, audio documents, video sequences and texts or to fall back on license-free diagrams, audio documents, video sequences and texts. All brands mentioned in the internet, together with registered trademarks, which are possibly protected by third parties are fully subject to the regulations of the applicable trademark law and to the ownership rights of the registered owners. However, by simply making reference to these, the conclusion is not to be drawn that brand names are not protected by the rights of a third party! The copyright for objects which are published and created by the author remains with the author of the sites alone. The duplication or use of such diagrams, audio documents, video sequences and texts in other electronic or printed publications is not permitted without the express agreement of the author. 4. Data protection If, within the internet material, the possibility to input personal or business data (email addresses, names, addresses) exists, the disclosure of such information by the user is effected on an entirely voluntary basis. The utilization of and payment for all services offered is also permitted - so far as is technically possible and reasonable - without disclosing such data, or respectively by using anonymous data or an alias. The use of published contact data, such as postal addresses, telephone and fax numbers, as well as email addresses, released in the context of this or in comparable publications or the transmission of information which is not expressly requested, is not permitted. The author reserves the right to take legal steps when this prohibition is violated, and against the senders of so-called spam mails. 5. Legal force of this disclaimer This disclaimer is to be regarded as a part of the website which has been referred to on this page. If parts or individual formulations of this text should not, no longer or not completely correspond with the current legal situation, the remaining parts of the document retain, unaffected, their contents and their validity.