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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">PERIODOS GLACIALES</topic></authority><related type="narrower"><topic>TIERRA (PLANETA)</topic></related><related type="other"><topic>ESTRATIGRAFIA (PLEISTOCENO)</topic></related><related type="broader"><topic>ESTRATIGRAFIA (CUATERNARIO)</topic></related><related type="broader"><topic>PUEBLOS PREHISTORICOS</topic></related><related type="broader"><topic>TIERRA (PLANETA)</topic></related><variant type="other"><topic>Edad de los hielos</topic></variant><variant type="other"><topic>Epocas glaciales</topic></variant><variant type="other"><topic>Períodos glaciares</topic></variant></mads>