<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-4654</journal-id>
<journal-title><![CDATA[Anuario mexicano de derecho internacional]]></journal-title>
<abbrev-journal-title><![CDATA[Anu. Mex. Der. Inter]]></abbrev-journal-title>
<issn>1870-4654</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Investigaciones Jurídicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-46542023000100033</article-id>
<article-id pub-id-type="doi">10.22201/iij.24487872e.2023.23.17892</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tendencias contemporáneas sobre la opinio juris y la prueba material del derecho internacional consuetudinario]]></article-title>
<article-title xml:lang="en"><![CDATA[Contemporary Trends on opinio juris and the Material Evidence of International Customary Law]]></article-title>
<article-title xml:lang="fr"><![CDATA[Tendances contemporaines sur l&#8217;opinio juris et la preuve matérielle du droit international coutumier]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Borba Casella]]></surname>
<given-names><![CDATA[Paulo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade de São Paulo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>23</volume>
<fpage>33</fpage>
<lpage>64</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-46542023000100033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-46542023000100033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-46542023000100033&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El presente artículo tiene por objeto discutir cómo puede tener sentido el derecho internacional, a partir del estado actual de la técnica, frente a los desarrollos futuros, y qué características debe tener el mismo para hacer frente a los desafíos que plantea el surgimiento del actual contexto mundial posmoderno, interdependiente, multipolar y cada vez más complejo. La novedad en el contexto internacional actual es que, además del nivel individual de acción de los Estados, ya sea unilateral, bilateral y multilateral, existe un área creciente para la formación y el desarrollo del consenso común. En ese contexto, la opinio juris ya no debe entenderse en la actualidad como una opinión individual de uno o de ciertos Estados, sino como declaraciones colectivas, emitidas por la comunidad internacional, en su conjunto o de una parte sustancial de las mismas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This essay aims to discuss how international law can make sense, based on the current state of the art, in the face of future developments. What characteristics does it have to have to face the challenges posed by the emergence of the current postmodern, interdependent, multipolar and increasingly complex world context? What is new in the current international context is that, in addition to the individual level of action by States, be it unilateral, bilateral and multilateral, there is a growing area for the formation and development of common consensus. In this context, the opinio juris should no longer be understood as an individual opinion of one or certain States, but today as collective declarations, issued by the international community, as a whole or a substantial part of them.]]></p></abstract>
<abstract abstract-type="short" xml:lang="fr"><p><![CDATA[Résumé Cet essai vise à discuter de la façon dont le droit international peut avoir un sens, sur la base de l&#8217;état actuel de l&#8217;art, face aux développements futurs. Quelles caractéristiques doit-elle avoir pour faire face aux défis posés par l&#8217;émergence du contexte mondial actuel postmoderne, interdépendant, multipolaire et de plus en plus complexe? Ce qui est nouveau dans le contexte international actuel, c&#8217;est qu&#8217;au-delà du niveau d&#8217;action individuel des États, qu&#8217;il soit unilatéral, bilatéral et multilatéral, il existe un espace croissant pour la formation et le développement d&#8217;un consensus commun. Dans ce contexte, l&#8217;opinio juris ne doit plus être comprise comme une opinion individuelle d&#8217;un ou de certains États, mais aujourd&#8217;hui comme des déclarations collectives, émises par la communauté internationale, dans leur ensemble ou une partie substantielle d&#8217;entre elles.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[derecho consuetudinario]]></kwd>
<kwd lng="es"><![CDATA[posmodernidad]]></kwd>
<kwd lng="es"><![CDATA[opinio juris]]></kwd>
<kwd lng="es"><![CDATA[prueba material]]></kwd>
<kwd lng="es"><![CDATA[desarrollo progresivo]]></kwd>
<kwd lng="es"><![CDATA[fuentes del derecho internacional]]></kwd>
<kwd lng="en"><![CDATA[Customary law]]></kwd>
<kwd lng="en"><![CDATA[postmodernity]]></kwd>
<kwd lng="en"><![CDATA[opinio juris]]></kwd>
<kwd lng="en"><![CDATA[material evidence]]></kwd>
<kwd lng="en"><![CDATA[progressive development]]></kwd>
<kwd lng="en"><![CDATA[sources of international law]]></kwd>
<kwd lng="fr"><![CDATA[Droit coutumier]]></kwd>
<kwd lng="fr"><![CDATA[postmodernité]]></kwd>
<kwd lng="fr"><![CDATA[opnio juris]]></kwd>
<kwd lng="fr"><![CDATA[preuve matérielle]]></kwd>
<kwd lng="fr"><![CDATA[développement progressif]]></kwd>
<kwd lng="fr"><![CDATA[sources du droit international]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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