<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>18820</termId><termName>RECREACIONES CIENTIFICAS</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>RECREACIONES CIENTIFICAS</termSortkey><termCreatedDate>RECREACIONES CIENTIFICAS</termCreatedDate><termModifiedDate>2015-02-18 06:23:22</termModifiedDate><relation><relationType>UF</relationType><termId>47090</termId><termName>Ciencia recreativa</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>1427</termId><termName>DIVERSIONES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>18819</termId><termName>MATEMATICAS RECREATIVAS</termName><termType>PT</termType></relation></term>  </Zthes>