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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">CONSTRUCCION DE CARRETERAS</topic></authority><related type="narrower"><topic>CARRETERAS DE HORMIGON</topic></related><related type="narrower"><topic>CARRETERAS MACADAMIZADAS</topic></related><related type="narrower"><topic>MANTENIMIENTO DE CARRETERAS</topic></related><related type="narrower"><topic>MATERIALES PARA CARRETERAS</topic></related><related type="broader"><topic>INGENIERIA DE CARRETERAS</topic></related><variant type="other"><topic>Carreteras--Diseño</topic></variant><variant type="other"><topic>Carreteras--Diseño y construcción</topic></variant><variant type="other"><topic>Construcción de caminos reales</topic></variant><variant type="other"><topic>Diseño de caminos reales</topic></variant><variant type="other"><topic>Diseño de carreteras</topic></variant><variant type="other"><topic>Geometría de caminos reales</topic></variant></mads>