<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_es">aeronave más liviana que el aire</topic></authority><related type="narrower"><topic>dirigibles</topic></related><related type="narrower"><topic>globos aerostáticos</topic></related><related type="broader"><topic>aeronaves por forma</topic></related><variant type="other"><topic>aeronave más liviana que el ai</topic></variant><variant type="other"><topic>aeronaves más livianas que el aire</topic></variant></mads>