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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">INVESTIGACIONES SOBRE TEMPERATURAS BAJAS</topic></authority><related type="narrower"><topic>AIRE LIQUIDO</topic></related><related type="narrower"><topic>FRIO</topic></related><related type="narrower"><topic>TEMPERATURA</topic></related><related type="broader"><topic>LICUEFACCION DE GASES</topic></related><related type="broader"><topic>INVESTIGACION</topic></related><related type="broader"><topic>TERMOQUIMICA</topic></related><variant type="other"><topic>Temperaturas baja--Investigaciones</topic></variant><variant type="other"><topic>Criogenía</topic></variant><variant type="other"><topic>Criogenia--Investigaciones</topic></variant></mads>