<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://roble.intecca.uned.es/tematres/lem/">Materiales</topic></authority><related type="narrower"><topic>Materiales a altas temperaturas</topic></related><related type="narrower"><topic>Materiales biomédicos</topic></related><related type="narrower"><topic>Materiales compuestos</topic></related><related type="narrower"><topic>Materiales magnéticos</topic></related><related type="narrower"><topic>Materiales ópticos</topic></related><related type="narrower"><topic>Nuevos materiales</topic></related><related type="narrower"><topic>Plásticos</topic></related><related type="narrower"><topic>Revestimientos</topic></related><related type="narrower"><topic>Conductores eléctricos</topic></related><related type="narrower"><topic>Materiales de construcción</topic></related><related type="narrower"><topic>Materiales refractarios</topic></related><related type="other"><topic>Materias primas</topic></related><related type="other"><topic>Materiales-Ensayos</topic></related><variant type="other"><topic>Materiales industriales</topic></variant><variant type="other"><topic>Industria-Materiales</topic></variant><variant type="other"><topic>Ingeniería-Materiales</topic></variant> <note xml:lang="es"><![CDATA[ Úsase para los estudios de conjunto sobre los materiales que se emplean en la ingeniería y en la industria.: ]]></note></mads>