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<ri:Resource created="1998-02-18T08:21:30Z" status="active" updated="2025-06-13T15:25:00Z" version="1.2" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>Optical monitoring of gamma-ray loud blazars. I</title><shortName>J/A+AS/121/119</shortName><identifier>ivo://CDS.VizieR/J/A+AS/121/119</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Villata M.</name></creator><creator><name>Raiteri C.M.</name></creator><creator><name>Ghisellini G.</name></creator><creator><name>De Francesco G.</name></creator><creator><name>Bosio S.,Latini G.</name></creator><creator><name>Bucciarelli B.</name></creator><creator><name>Chiaberge M.</name></creator><creator><name>Chiumiento G.</name></creator><creator><name>Cora A.,Lanteri L.</name></creator><creator><name>Lattanzi M.G.</name></creator><creator><name>Massone G.</name></creator><creator><name>Peila A.</name></creator><creator><name>Racioppi F.</name></creator><creator><name>Smart R.L.,Scaltriti F.</name></creator><creator><name>Anderlucci E.</name></creator><date role="Updated">1998-02-18T07:21:52Z</date><date role="Created">1998-02-18T08:21:30Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>quasars</subject><subject>apparent-magnitude</subject><description>The results of the optical monitoring between November 1994 and November 1995 of twenty gamma-ray loud blazars included in the Torino blazar monitoring program are presented.</description><source format="bibcode">1997A&amp;AS..121..119V</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/121/119</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/522/846">J/ApJ/522/846 : Optical monitoring of GeV loud blazars (Xie+, 1999)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/127/445">J/A+AS/127/445 : Gamma-ray loud blazars optical monitoring. 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