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| Grabstätte Heinz A. Staab| Eigenes Werk| Bernhard Diener| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 4.0' align='center' link='https://www.austria-forum.org/cc/by-sa-40.html' target='_blank'}]| Datei:Grabstätte Heinz A. Staab.jpg
| Chemical structure of kekulene| Eigenes Werk| Edgar181| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Kekulene.svg
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