All texts, pictures and further information published here are subject to the copyright of the site operator. Reproduction, distribution or public reproduction is only permitted in the event of a revocable and non-transferable consent of the website operator.

The contents of our website are created with the greatest care. However, no guarantee can be given for topicality and completeness. The website operator accepts no responsibility for any web content linked to the link, since this is not a content of its own. External links were checked for unlawful content, at the respective time they were not recognizable. However, there is no general monitoring and auditing obligation with respect to third-party content. The listed trademarks and brand names are the property of their respective owners.

R-EF (Rujan Entwicklung & Forschung) GmbH
Wintererstr. 47A, 79104 Freiburg

Directed by Dr. Pal Rujan
• theoretical physicist
• software developer

USt-ID-Nr.: DE 262133813
Registered in the Commercial Register of the Freiburg District Court, Handelsregisternummer: HRB 702719