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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">ESTRUCTURA DEL SUELO</topic></authority><related type="narrower"><topic>MICROMORFOLOGIA DEL SUELO</topic></related><related type="broader"><topic>FISICA DE SUELOS</topic></related><related type="broader"><topic>SUELOS</topic></related><variant type="other"><topic>Estructura de suelos</topic></variant><variant type="other"><topic>Suelos--Estructura</topic></variant><variant type="other"><topic>Agregados de suelos</topic></variant><variant type="other"><topic>Morfología de suelos</topic></variant></mads>