<?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://www.serbi.ula.ve/tematres/vocab/">CELULAS FOTOELECTRICAS</topic></authority><related type="other"><topic>CONVERSION DIRECTA DE ENERGIA</topic></related><related type="broader"><topic>DISPOSITIVOS OPTOELECTRONICOS</topic></related><variant type="other"><topic>Fotocélulas</topic></variant><variant type="other"><topic>Fototubos</topic></variant></mads>