<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>8741</termId><termName>Principios de la seguridad social</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>Tesauro</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Principios de la seguridad social</termSortkey><termNote label="Registro Aleph"><![CDATA[ 837 ]]></termNote><termCreatedDate>Principios de la seguridad social</termCreatedDate><relation><relationType>BT</relationType><termId>5205</termId><termName>Derecho de la seguridad social</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>6148</termId><termName>Cooperativismo</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>18363</termId><termName>Mutualismo individualista</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>20542</termId><termName>Seguridad humana</termName><termType>PT</termType></relation></term>  </Zthes>