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Die Bösen Blumen – Oder wie man mit biologischer Invasion umgeht In einem Feature besucht Silke Müller den Leiter des Botanische Gartens in Linz, Dr. Friedrich Schwarz. Er ist Stadtökologe, Botaniker und Biologe. Es sprechen: Dr. Friedrich Schwarz, Jerneja Zavec, Oliver Jagosch und die Autorin
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