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mads.xsd"><authority><topic authority="http://roble.intecca.uned.es/tematres/lem/">Electrónica</topic></authority><related type="narrower"><topic>Electrónica analógica</topic></related><related type="narrower"><topic>Electrónica de potencia</topic></related><related type="narrower"><topic>Electrónica del estado sólido</topic></related><related type="narrower"><topic>Electrónica digital</topic></related><related type="narrower"><topic>Electrónica médica</topic></related><related type="narrower"><topic>Óptica electrónica</topic></related><related type="narrower"><topic>Cibernética</topic></related><related type="narrower"><topic>Control-Sistemas</topic></related><related type="narrower"><topic>Máquinas electrónicas</topic></related><related type="narrower"><topic>Microelectrónica</topic></related><related type="other"><topic>Electrotecnia</topic></related><related type="other"><topic>Semiconductores</topic></related><related type="other"><topic>Circuitos electrónicos</topic></related><related type="other"><topic>Física de sólidos</topic></related><related type="other"><topic>Modulación (Electrónica)</topic></related><related type="other"><topic>Aviónica</topic></related><related type="other"><topic>Industria electrónica</topic></related><variant type="other"><topic>Ingeniería electrónica</topic></variant></mads>