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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">TELEGRAFO</topic></authority><related type="narrower"><topic>CABLES SUBMARINOS</topic></related><related type="narrower"><topic>CIFRAS Y CLAVES</topic></related><related type="narrower"><topic>CIFRAS Y CLAVES TELEGRAFICAS</topic></related><related type="narrower"><topic>Líneas telegráficas</topic></related><related type="narrower"><topic>RADIOTELEGRAFIA</topic></related><related type="broader"><topic>TRAFICO DE TELECOMUNICACIONES</topic></related><related type="broader"><topic>ELECTRICIDAD</topic></related><related type="broader"><topic>TELECOMUNICACIONES</topic></related><related type="broader"><topic>INGENIERÍA ELÉCTRICA</topic></related><variant type="other"><topic>Telegrafía</topic></variant><variant type="other"><topic>Telégrafo eléctrico</topic></variant><variant type="other"><topic>Telégrafo postal</topic></variant><variant type="other"><topic>Telegramas</topic></variant></mads>