Information corresponding to § 5 TMG:

Luxemburger Str. 90
50939 Cologne

Registered Office: Cologne
Commercial Register: HRB 82828
VAT-ID Number: DE 298717802

Management Board:

Dr. Alexander Müller, Dr. Roland Oberhoffer, Michael Hoffmann

Luxemburger Str. 90
50939 Cologne


Telephone:   +49-221-93371340

Responsible for the content corresponding to § 55 Abs. 2 RStV:

Dr. Alexander Müller, Dr. Roland Oberhoffer, Michael Hoffmann

Luxemburger Str. 90
50939 Cologne


Liability for Contents

The contents of our pages have been created with great care. For the accuracy, completeness and timeliness of content, we do not take any responsibility. As a service provider we are responsible according to § 7 1 TMG for own contents on these pages under the general laws. According to §§ 8 to 10 TMG we are not obligated as a service provider to monitor transmitted or stored information, or to investigate circumstances that indicate illegal activities. Obligations to remove or block the use of information under the general laws remain unaffected. However, a relevant liability is only possible from the date of knowledge of a specific infringement. Upon notification of such violations, we will remove the content immediately.

Liability for Links

Our site contains links to external websites, which are not controlled by us. Therefore we cannot accept any responsibility for their content. The provider or operator is always responsible for the content of linked sites. The linked sites were checked at the time of linking for possible legal violations. Illegal contents were at the time of linking not detectable. A permanent control of the linked sites is unreasonable without concrete evidence of a violation. Upon notification of violations, we will immediately remove such links.


The content and works on these pages created by the site operators are subject to German copyright law. Copying, editing, distribution and any kind of exploitation outside the limits of copyright require the written approval of the author or creator. Downloads and copies are permitted only for private, non-commercial use. Insofar as the content is not created by the operator, the copyright of third parties has to be considered. In particular contents of third parties are marked as such. Should you still be aware of copyright infringement, we kindly ask for informing us. Upon notification of violations, we will remove the content immediately.

Data Protection

The use of our website is usually possible without providing personal information. If any personal data (e.g. name, address or email address) are gathered, this occurs on a voluntary basis as far as possible. These data are not transmitted to third parties without your express consent.

We draw your attention to the fact that data transmission over the Internet (e.g. when communicating by e-mail) may involve gaps in security. A complete protection of data against unauthorized access by third parties is impossible.

The use of the published contact data within the framework of the imprint regulations by third parties for sending non-requested advertisement and information materials is expressly prohibited. The operators of this website reserve the express right to take legal action in the case of transmission of non-solicited advertising material, e.g. as spam mail.

Data Privacy Statement for using Google Analytics

This website uses Google Analytics, a web analytics service provided by Google Inc. (” Google “). Google Analytics uses so called “Cookies”, text files which are stored on your computer and enable analysis of your use of the website. The information generated by the cookie about your use of this website are usually transferred to a Google server in the USA and stored there. In case of activation of the IP anonymization on this website your IP address will be truncated by Google within Member States of the European Union or other parties to the Agreement on the European Economic Area.

Only in exceptional cases the full IP address will be transmitted to a Google server in the USA and truncated there. On behalf of the operator of this website, Google will use this information to evaluate your use of this website, compiling reports on website activity and providing other with website and internet related services to the website operator. IP-address transmitted by your browser as part of Google Analytics will not be merged with other data from Google.

You may refuse the use of cookies by adjusting your browser software. However, we point out that you possibly cannot use all features of this website to their full extent in this case. You can also prevent the data generated by the cookie about your use of the website (incl. your IP-address) to Google and the processing of these data by Google, by downloading and installing available browser plugin at the following link:

Data Privacy Statement for using Google +1

Gathering and transfer of information:

Using the Google +1 button you can publish information worldwide. Using the Google +1 button you and other users personalized content from Google and our partners. Google will store both the information that you have given for a content +1, as well as information about the page you viewed when you click on +1. Your +1 can be shown as evidence along with your name and profile photo in Google services, such as in search results or in your Google profile, or elsewhere on websites and ads on the Internet.

Google records information about your +1 activities to improve Google’s services for you and others. To use the Google +1 button, you need a globally visible, public Google profile, which must contain at least the chosen profile name. This name is used in all Google services. In some cases, this name can also substitute any other name that you used when sharing content via your Google account. The identity of your Google profile can be shown to users who know your e -mail address or other identifying information from you.

Use of gathered information:

In addition to the designated uses above the information you provide are used in accordance with the applicable Google privacy policies. Google may release aggregate statistics on the +1 activities of users or transmits them to users and partners, such as publishers, advertisers or linked sites.