According to § 28 BDSG I contradict every commercial use and disclosure of my data. is a project of

Daniel Hienert
Dreikönigenstr. 46
50678 Cologne
Tel.: +49 (0)221-96269721

Responsible in terms of the Section 10 of the MDStV (German Interstate Agreement on Media Services):
Daniel Hienert

Vizgr is a scientific project and freely available. Comments, suggestions and criticism for Vizgr please send an email to

1. Limited liability

Contents of this site

The content of this website is assembled with greatest degree of care. The operator of the site does not, however, accept any liability for the correctness, completeness and topicality of the content. The data accessible is used solely at the risk of the user. Contributions listed by name solely reflect the opinion of the respective author and not that of the site operator.

Availability of the Website

The site operator undertakes to make its best effort to ensure that the site is available without interruption. Despite all due care and attention, downtimes cannot be precluded. The site operator reserves the right to amend or cancel the range on offer at any time.

External Links

This website contains links to the websites of third parties (external links). Liability for the content of such websites rests with the respective site operator. When including these external links for the first time, the operator of this site checked the external content for possible legal violations. At that time, no legal violations became apparent. The site operator has no influence upon the current and future design or the content of linked sites. The inclusion of external links does not imply any claim to the intellectual property rights to the content accessible from these external links. Constant monitoring by the site operator of the content of these external links without any concrete notification of legal violations is not deemed to be reasonable. Should any legal violations become known to the site operator, the respective external links shall, however, be immediately removed.


The liability for the content of any online advertising content rests with the author thereof, as does the liability for the content of the site advertised. The inclusion of online advertising content does not constitute its acceptance by the operator.

Contractual relationship

The use of the website does not constitute any contractual relationship between the operator and the user. In this respect, no types of contractual claims against the operator will be entertained. In the event that the use of the website should in fact lead to a contractual relationship the following liability limitation shall apply as a precaution: The operator is liable for malicious intent or gross negligence as well as any violation of a material contractual obligation. The operator bears limited liability for the replacement of typical damages foreseeable at the time of contractual conclusion that have been caused by minor negligence of material contractual obligations by the operator, his legal representatives or vicarious agents. The operator shall not be liable in the event of negligence of secondary obligations that do not constitute material contractual obligations. Liability for claims that lie within the scope of protection of any guarantee or warranty provided by the operator, as well as liability for claims under the product liability act or, injury to life, limb or health remains unaffected.

2. Copyright

The content and literature published on this website are protected by copyright. Any non-permissible use of it in accordance with the requirements of German copyright law is subject to prior agreement in writing from the respective author. This applies in particular to the copying, processing, translation, electronic storage, and processing or reproduction of content in databases or other electronic media. Content and contributions of third parties are designated as such. The copying or reproduction of individual content or complete pages is not permissible and punishable at law. The preparation of copies or downloads for personal, private information and not for commercial exploitation is permissible. Links to the operator's website are welcomed at any time and does not require the agreement of the operator of this website. The representation of this website in different formats is only permissible by agreement.

3. Data protection

By visiting the operator's website, information can be stored upon the server concerning the visit (date, time, page accessed). Such data are not related to personal data but are anonymous. They are exclusively analysed for statistical purposes. Transmission of these data to third parties for commercial or non-commercial reasons does not occur. Furthermore, data can be stored on the computer of their user. These data are known as "cookies" and serve the purposes of simplifying the access behaviour of the user. The user does, however, have the possibility of deactivating this function within the respective web browser being used. In such cases, limitations in the operability of our website can arise.

The operator expressly states that data transmission via the Internet (e.g. in E-mail communication) can lead to gaps in security and cannot be protected uninterruptedly from third-party access.

The use of the contact data of the operator - in particular telephone/fax numbers and E-mail address - for commercial advertising is expressly dissuaded, unless the operator has provided prior written agreement or there is an existing business contact. The operator and all persons named on this website herewith undertake to refrain from any commercial use or further transmission of your personal data.

4. Applicable jurisdiction

The law of the Federal Republic of Germany is applicable.

5. Special Terms

If and when special terms of use for individual use of this website differ from the aforementioned points 1 to 4, this will be explicitly stipulated at the relevant location.