Palmer, M. The Prospects for a European Security Conference. Chatham House:PEP, 1971. ISBN 978-0-85374-037-7. с. 10. Посетен на 6 May 2021. The Group of Nine / Ten met several times to explore initiatives that could be taken to achieve a greater degree of European détente. ... held at the U.N. in October 1969, the experiment of the Group of Ten appeared to have come to an end, at least for the time being . ... over the course of 1966 were Austria, Belgium, Bulgaria, Denmark, Finland, Hungary, Rumania, Sweden, and Yugoslavia.
The World Factbook 1998 // United StatesCentral Intelligence Agency. Посетен на September 26, 2009. Serbia and Montenegro has self-proclaimed itself the „Federal Republic of Yugoslavia,“ but the US view is that the Socialist Federal Republic of Yugoslavia (SFRY) has dissolved and that none of the successor republics represents its continuation