<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>21323</termId><termName>FUNCIONES HIPERGEOMETRICAS</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>FUNCIONES HIPERGEOMETRICAS</termSortkey><termCreatedDate>FUNCIONES HIPERGEOMETRICAS</termCreatedDate><termModifiedDate>2015-02-10 12:14:31</termModifiedDate><relation><relationType>BT</relationType><termId>38418</termId><termName>FUNCIONES TRASCENDENTES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>6893</termId><termName>FUNCIONES DE WEBER</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>38494</termId><termName>H-FUNCIONES</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>21320</termId><termName>SERIES HIPERGEOMETRICAS</termName><termType>PT</termType></relation></term>  </Zthes>