<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>4916</termId><termName>CONTROL DEL TRAFICO AEREO</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>Vocabulario Latinoamericano de Ciencias Sociales</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>CONTROL DEL TRAFICO AEREO</termSortkey><termCreatedDate>2012-03-26 21:57:51</termCreatedDate><relation><relationType>BT</relationType><termId>3467</termId><termName>REGULACION DEL TRAFICO</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>5396</termId><termName>TRAFICO</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>5003</termId><termName>ESPACIO AEREO</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3423</termId><termName>SEGURIDAD AEREA</termName><termType>PT</termType></relation></term>  </Zthes>