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mads.xsd"><authority><topic authority="http://roble.intecca.uned.es/tematres/lem/">Reactores nucleares</topic></authority><related type="narrower"><topic>Combustibles nucleares</topic></related><related type="narrower"><topic>Reactores de agua pesada</topic></related><related type="narrower"><topic>Reactores rápidos</topic></related><related type="narrower"><topic>Reactores refrigerados por agua</topic></related><related type="narrower"><topic>Reactores refrigerados por gas</topic></related><related type="narrower"><topic>Reactores regeneradores</topic></related><related type="narrower"><topic>Tokamaks</topic></related><related type="narrower"><topic>Residuos radiactivos</topic></related><related type="other"><topic>Recipientes a presión</topic></related><related type="other"><topic>Accidentes nucleares</topic></related><related type="other"><topic>Reacciones nucleares</topic></related><related type="other"><topic>Centrales nucleares</topic></related><related type="other"><topic>Propulsión nuclear</topic></related><related type="other"><topic>Energía nuclear</topic></related><related type="other"><topic>Elementos combustibles nucleares</topic></related><related type="broader"><topic>Física nuclear</topic></related><related type="broader"><topic>Ingeniería nuclear</topic></related></mads>