Quelle:The president of the OSCE Parliamentary Assembly, Petros Efthymiou, gives a news conference ahead of the OSCE Summit in Astana. 29 November 2010. Lööf, Susanna. Astana: Organisation pour la sécurité et la coopération en Europe, 29.11.2010. Couleur. Organization for Security and Co-operation in Europe, OSCE. [EN LIGNE]. Disponible sur http://www.osce.org .
