Site Notice


Despite careful control, we assume no liability for the content of external links shown on our website. The operators of linked pages are solely responsible for their own content.


The text and photos on the website are copyright protected. Copying and/or changing these files is not permitted without prior permission of the copyright owner. However, this does not preclude the “copying” of files to a private computer, in order to view the web pages via a browser.


Concept of the website
Prof. Manfred R. Strecker, PhD
University of Potsdam
Phone: ++49 (0) 331 977 5621

Content and images

© Copyright Photos: Various authors and ALErT employees

Design & Coding

Elisabeth Sillmann |

Implemented in WordPress

Janek v. Kaler | JvK WebProducts