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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">CRISTALOGRAFIA MATEMATICA</topic></authority><related type="narrower"><topic>GRUPOS ESPACIALES</topic></related><related type="narrower"><topic>GRUPOS SIMETRICOS</topic></related><related type="narrower"><topic>REDES CRISTALINAS</topic></related><related type="narrower"><topic>REPRESENTACIONES DE INTEGRALES</topic></related><related type="narrower"><topic>TEORIA DE BANDA DE ENERGIA DE SOLIDOS</topic></related><related type="narrower"><topic>TEORIA DE GRUPOS</topic></related><related type="other"><topic>TEORIA DE RETICULADOS</topic></related><variant type="other"><topic>Cristalografía--Matemáticas</topic></variant><variant type="other"><topic>Cristalometría</topic></variant></mads>