<?xml version='1.0' encoding='utf-8'?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-05-18T00:35:47Z</responseDate><request verb="GetRecord" metadataPrefix="oai_dc" identifier="oai:www.bilketa.eus:ark:/27020/go469659">https://www.bilketa.eus/in/rest/oai</request><GetRecord><record><header><identifier>oai:www.bilketa.eus:ark:/27020/go469659</identifier><setSpec>ALL</setSpec><datestamp>2026-05-11T10:04:42Z</datestamp></header><metadata> <oai_dc:dc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:identifier>https://www.bilketa.eus/ark:/27020/go469659</dc:identifier><dc:creator>Bory de Saint Vincent, Jean-Baptiste (1778-1846)</dc:creator><dc:source>MUBA, P 5052</dc:source><dc:date>1821</dc:date><dc:type xml:lang="eng">text</dc:type><dc:type xml:lang="fre">monographie imprimée</dc:type><dc:type xml:lang="eng">printed monograph</dc:type><dc:format>381 p. ; carte, lithogr. ; 21 x 13 cm</dc:format><dc:description>Lettres à M. Palassou, correspondant de l'Académie des Sciences, sur les excursions tentées vers les montagnes maudites des Pyrénées par M. Léon Dufour, naturaliste</dc:description><dc:relation>vignette : https://www.bilketa.eus/in/rest/Thumb/image?id=ark:/27020/go469659&amp;mat=book</dc:relation><dc:language>fre</dc:language><dc:publisher>Ponthieu (Paris)</dc:publisher><dc:subject>Géologie</dc:subject><dc:title>Voyage souterrain, ou description du plateau de Saint-Pierre de Maestricht et de ses vastes cryptes par le colonel Bory de Saint-Vincent.[..]</dc:title></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>