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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">SISTEMAS DE TELECOMUNICACION</topic></authority><related type="narrower"><topic>SISTEMAS DE COMUNICACION DE BANDA ANCHA</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION DE EMERGENCIAS</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION DE EMERGENCIAS MEDICAS</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION DE LA POLICIA</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION EN MEDICINA</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION EN MINAS</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION INALAMBRICA</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION MOVILES</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION POR LASER</topic></related><related type="narrower"><topic>SISTEMAS DE COMUNICACION POR MICROONDAS</topic></related><related type="narrower"><topic>SISTEMAS DE INTERCOMUNICACION</topic></related><related type="narrower"><topic>SISTEMAS DE TRANSMISION DE DATOS</topic></related><related type="narrower"><topic>SISTEMAS TELEFONICOS</topic></related><related type="narrower"><topic>TELECOMPRAS</topic></related><related type="broader"><topic>TELECOMUNICACIONES</topic></related><variant type="other"><topic>Comunicación--Sistemas</topic></variant><variant type="other"><topic>Telecomunicación--Sistemas</topic></variant></mads>