Freiberg Education, also known as Freiberger Modell, shut down the operation in 2022. The email info@freiberg.edu will end working in July 2024. The domain freiberg.edu will no longer be renewed. Most educational concepts have been developed by Reiner Schneeberger. One of them was the first Generative Computergraphic-Specialist reaching back to the first publications about computer art programming.
https://archive.org/details/computerart-experimental-aesthetics-1978