<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>16386</termId><termName>GEOMETRIA PLANA</termName><termType>TT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>GEOMETRIA PLANA</termSortkey><termCreatedDate>GEOMETRIA PLANA</termCreatedDate><termModifiedDate>2015-02-09 12:52:48</termModifiedDate><relation><relationType>NT</relationType><termId>29686</termId><termName>CIRCULO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>33683</termId><termName>DESIGUALDADES ISOPERIMETRICAS</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>39151</termId><termName>GEOMETRIA ANALITICA PLANA</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>10977</termId><termName>MEDICION DE SUPERFICIES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>39152</termId><termName>POLIGONOS</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>39153</termId><termName>SECCION AUREA</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>51959</termId><termName>TEOREMA DE PITAGORAS</termName><termType>PT</termType></relation></term>  </Zthes>