Letters exchanged between Lujo Toncic-Sorinj and Herbert von Karajan (24 July 1971 - 12 August 1971)
TextSource and copyright
Source: European anthem. Documents. [EN LIGNE]. [s.l.]: Council of Europe, Library and Archives, [19.09.2005]. Disponible sur http://info.coe.int/archives/hist/hymn/default.asp.