<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>3859</termId><termName>Hielo</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>INDICES DE MATERIAS</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Hielo</termSortkey><termNote label="Scope"><![CDATA[ Los encabezamientos que empiezan por la palabra Hielos. ]]></termNote><termNote label="History"><![CDATA[ Se puede usar con un subencabezamiento geográfico. ]]></termNote><termNote label="Source"><![CDATA[ <p><strong>CDU</strong>: 551.32</p>
<p><strong>CDU</strong>: 551.322</p>
<p><strong>CDU:</strong> 556.535</p>
<p><strong>CDU</strong>: 551.578.4</p> ]]></termNote><termCreatedDate>Hielo</termCreatedDate><relation><relationType>UF</relationType><termId>4503</termId><termName>Hielos</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>4388</termId><termName>Área 11. Hidrología general</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>11289</termId><termName>Área 1. Física de la atmósfera</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>12502</termId><termName>Area 03. Geografía general física</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3857</termId><termName>Regiones polares</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3749</termId><termName>Geografía física</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>4064</termId><termName>Agua</termName><termType>PT</termType></relation></term>  </Zthes>