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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">CONCESIONES</topic></authority><related type="narrower"><topic>CORPORATIVISMO</topic></related><related type="narrower"><topic>DERECHO MERCANTIL</topic></related><related type="narrower"><topic>DOCTRINA DE CALVO</topic></related><related type="narrower"><topic>FERROCARRILES</topic></related><related type="narrower"><topic>LEGISLACION SOBRE PETROLEO</topic></related><related type="narrower"><topic>LEYES FERROVIARIAS</topic></related><related type="narrower"><topic>MINAS</topic></related><related type="other"><topic>PATENTES MUNICIPALES</topic></related><related type="other"><topic>DERECHO MINERO</topic></related><related type="other"><topic>CONTRATOS</topic></related><related type="broader"><topic>DERECHO ADMINISTRATIVO</topic></related><related type="broader"><topic>POLITICA INDUSTRIAL</topic></related><variant type="other"><topic>Industria y estado</topic></variant></mads>