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mads.xsd"><authority><topic authority="http://roble.intecca.uned.es/tematres/lem/">Grabaciones sonoras</topic></authority><related type="narrower"><topic>Cintas magnetofónicas</topic></related><related type="narrower"><topic>Discos</topic></related><related type="other"><topic>Fonotecas</topic></related><related type="other"><topic>Discos compactos</topic></related><related type="other"><topic>Magnetófonos</topic></related><related type="other"><topic>Sonido-Grabación y reproducción</topic></related><related type="other"><topic>Tocadiscos</topic></related><related type="other"><topic>Industria discográfica</topic></related><related type="broader"><topic>Materiales audiovisuales</topic></related><variant type="other"><topic>Discos</topic></variant><variant type="other"><topic>Discos fonográficos</topic></variant><variant type="other"><topic>Cintas magnetofónicas</topic></variant><variant type="other"><topic>Discos gramofónicos</topic></variant></mads>