11 May 2011 | Publisher: Council of Europe | Document type: Multilateral Treaties/Agreements
12 July 2007 | Publisher: Council of Europe | Document type: Multilateral Treaties/Agreements
11 July 2003 | Publisher: African Union | Document type: Multilateral Treaties/Agreements
9 June 1994 | Publisher: Organization of American States (OAS) | Document type: Multilateral Treaties/Agreements