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https://adamlauks.com/2013/01/21/offener-brief-an-den-professor-dr-ulrich-sieber-max-planclk-institut-freiburg-im-breisgau/
OFFENER BRIEF an den Professor Dr. Ulrich Sieber, den Direktor des MAX-PLANCK-INSTITUTS in Freiburg im Breisgau - "Ich habe den TOP Spion des MfS - IMS Altmann" alias Professor Dr. Jörg Arnold > "Freisler von Dresden"enttarnt!"