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	mads.xsd"><authority><topic authority="https://library.fes.de/tematres/vocab/">Bodenschätze</topic></authority><related type="other"><topic>Öl</topic></related><related type="other"><topic>Rohstoff</topic></related><related type="other"><topic>Kohle</topic></related><related type="other"><topic>Kali</topic></related><related type="other"><topic>Erdgas</topic></related><related type="other"><topic>Gold</topic></related><related type="other"><topic>Gas</topic></related><related type="other"><topic>Silber</topic></related><related type="other"><topic>Geologie</topic></related><related type="other"><topic>Metall</topic></related><variant type="other"><topic>Mineralische Rohstoffe</topic></variant></mads>