<?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="https://confrides.cpd.ua.es/tematres1/vocab/">Satélites artificiales en  navegación</topic></authority><related type="other"><topic>Navegación</topic></related><related type="other"><topic>Navstar-GPS, Sistema</topic></related><related type="broader"><topic>1. ENCABEZAMIENTOS DE MATERIA</topic></related><variant type="other"><topic>Asistencia por satélite a la navegación</topic></variant><variant type="other"><topic>Navegación por satélite</topic></variant> <note type="history" xml:lang="">Admitida diciembre 1999 </note> <note type="source" xml:lang="">CDU 629.783 </note> <note type="source" xml:lang="es">&lt;p&gt;Fte.: CSIC&lt;/p&gt; </note></mads>