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mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_es">sistemas de telecomunicaciones</topic></authority><related type="narrower"><topic>sistemas de comunicación policial</topic></related><related type="narrower"><topic>redes telefónicas</topic></related><related type="narrower"><topic>componentes sistemas de telecomunicación</topic></related><related type="narrower"><topic>televisión</topic></related><related type="narrower"><topic>telegrafía sin hilos</topic></related><related type="narrower"><topic>intranets</topic></related><related type="narrower"><topic>wireless sensor networks (traducció pendent)</topic></related><related type="narrower"><topic>telex (traducció pendent)</topic></related><related type="other"><topic>telecomunicación</topic></related><related type="other"><topic>telecomunicación</topic></related><related type="other"><topic>televillages</topic></related><related type="broader"><topic>sistemas infraestructurales</topic></related><variant type="other"><topic>red de telecomunicaciones</topic></variant><variant type="other"><topic>sistema de telecomunicaciones</topic></variant></mads>