Author Information

This website is published by:

Project Management by CACTUS COMPETENCE*
info at

Germany: +49 1575 2407209
France: +33 7 52 63 66 77

Consider the environment! We have a paper-free office, please send your messages only by e-mail.

Responsible and editor: Christian Sachs
Copyright: © 2008-2017 CACTUS COMPETENCE, all rights reserved
CACTUS COMPETENCE and the logo is an registered trademark
Graphics, realisation and technical maintenance: Ines Sachs

* Company registered under:
CactusCompetence   • Address: Sepapaja tn 6, 15551 Tallinn, Estonia •
Register No: 14148686
We are a EU based company, established and managed 100% on-line and therefore completely location-independent. Christian Sachs as a Estonian e-resident is the full owner of this company. Learn more about e-residency on the website of the Estonian Government.

Legal notice

Scope of application
The regulations mentioned below apply to this website as well as to our pages, also called fan-pages or company pages, on all social networks as soon as their legal notice link to this page.

1. Limitation of liability
The contents of this website were compiled with the greatest care possible. Nevertheless, the provider makes no warranties regarding the completeness, accuracy or timeliness of the information presented. The use of the website and its content is at the user’s own risk. Signed contributions express the views and opinions of the relevant authors and not necessarily those of the provider. The provider will make every effort to ensure that the functions provided by the website are uninterrupted, but despite all diligence, such interruptions may nevertheless occur. The provider reserves the right to amend information or stop publication at any time. Commercial advertising content is the responsibility of the relevant author, which applies likewise for the content of the website advertised. The presence of an advertisement does not constitute any endorsement by the provider. The use of the provider’s website in no way establishes a contractual relationship between the provider and the user. Therefore, there also exist no contractual or quasi-contractual claims against the provider.

2. External links
This website contains links to third-party websites (“external links”). Each of these websites is the responsibility of its respective operators. When the links to these external sites were first established, the provider examined the content for violations of law. At that time, no such violations were apparent. However, the provider has no influence on the current and future design and content of linked websites. The existence of external links does not imply that the provider adopts the content of the linked websites as its own. The provider cannot reasonably be expected to continually review these sites for legal violations without concrete indications of such violations. However, if any legal violations become known, the external links will be removed without delay.

3. Copyright and performance protection rights
The contents published on this website are protected by Europe’s copyright and performance protection laws. Any utilization not permitted by Europe’s copyright and performance protection laws require the prior written consent of the provider or the relevant rights holder. This applies particularly to copying, editing, translating, storing, processing and reproducing the contents in databases or other electronic media and systems. Contents and third-party rights are clearly indicated as such. The unauthorized duplication or forwarding of individual contents or complete pages is prohibited and punishable by law. Only downloads and the making of copies for personal, private and non-commercial use are permitted. Links to this website are always welcome and require no permission from the provider of this website. Presentation of this website in external frames is allowed only with prior permission.
All third-party comments left on this website as well as on it’s fan pages on the social media will become the provider’s propriety. When clicking on the send button, the user consents to the utilisation of this content by the provider.

4. Data protection
Certain information regarding access (date, time, pages viewed) may be stored when the user visits this website. This information is not considered personal data, but is treated anonymously. It is used solely for statistical purposes and will not be passed on to third parties, whether for commercial or non-commercial purposes. The provider explicitly warns that transmitting data over the Internet (e.g. communication by e-mail) may involve security vulnerabilities, and the data transmitted may not be completely protected against access by third parties. The use of the provider’s contact information for commercial advertising is explicitly not desired unless the provider has given its prior written consent or a business relationship already exists. The provider and all the persons mentioned on this website hereby object to any commercial use and forwarding of their data.

5. Special terms and conditions of use
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. In this case, the special terms of use apply in each individual case. All the information on this website is provided in German, English and French. When in doubt, the German version shall prevail.