<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>7249</termId><termName>G-estructuras</termName><termType>TT</termType><termLanguage>es</termLanguage><termVocabulary>INDICES DE MATERIAS</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>G-estructuras</termSortkey><termCreatedDate>G-estructuras</termCreatedDate><relation><relationType>RT</relationType><termId>6947</termId><termName>Geometría diferencial</termName><termType>PT</termType></relation></term>  </Zthes>