Source et copyright
Source: Ambassador Wilhelm Höynck, first Secretary General of the OSCE from 1993 to 1996. Organisation pour la sécurité et la coopération en Europe. Couleur.
Organization for Security and Co-operation in Europe, OSCE. [ON-LINE]. [s.l.]: [s.d.]. Disponible sur http://www.osce.org/index.php.
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