2 February 1983 | Publisher: Council of Europe | Document type: Multilateral Treaties/Agreements
24 November 1977 | Publisher: Council of Europe | Document type: Multilateral Treaties/Agreements
6 May 1963 | Publisher: Council of Europe | Document type: Multilateral Treaties/Agreements
12 April 1935 | Publisher: League of Nations | Document type: Multilateral Treaties/Agreements