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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">DIODOS</topic></authority><related type="narrower"><topic>DIODOS DE GERMANIO</topic></related><related type="narrower"><topic>DIODOS DE SILICIO</topic></related><related type="narrower"><topic>DIODOS EMISORES DE LUZ</topic></related><related type="narrower"><topic>DIODOS SEMICONDUCTORES</topic></related><related type="narrower"><topic>DIODOS TUNEL</topic></related><related type="broader"><topic>TUBOS DE VACIO</topic></related></mads>