<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>39316</termId><termName>TEORIA DE HACES</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>TEORIA DE HACES</termSortkey><termCreatedDate>TEORIA DE HACES</termCreatedDate><relation><relationType>UF</relationType><termId>39317</termId><termName>Haces, Cohomología</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>39318</termId><termName>Haces (Topología algebraica)</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>39319</termId><termName>Haces, Teoría de</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>20608</termId><termName>TOPOLOGIA ALGEBRAICA</termName><termType>PT</termType></relation></term>  </Zthes>