Source: Bernard Snoy, the Co-ordinator of OSCE Economic and Environmental Activities. EVSTAFIEV, Mikhail. Organization for Security and Co-operation in Europe/ Photo MIME, 2005. Colour.
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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