76 International Union of Socialist Youth IUSY/Internationale Union der sozialistischen Jugend/ L'Union Internationale de la Jeunesse socialiste The IUSY was founded at a conference in 1946 by mostly European social-democratic youth organizations. In the next decades it was, on the one hand, pushed back to Western and Northern Europe, on the other, it was more succesful than the SI in attracting membership in quite a lot of countries all over the world. A sort of’offical’ history of IUSYs first 20 years is Radomir Luza: History of the International Socialist Youth Movement, A.W.Sijthoff, Leyden 1970. The IUSY headquarters are situated in Vienna. IISG: IUSY archives ABA: IUSY files 1947­1946­n.d. Samajwadi Yuvak Sabha and the I.U.S.Y.[Correspondence], The Young Socialist Youth, Madras n.d., 21 p. IISG The International Union of Socialist Youth, IUSY, Vienna n.d.[ 196?, 3rd ed.?], 25 p. IISG Kéthly, Anna: Why? The History of a Mass Revolt in Search for Freedom, International Union of Socialist Youth, Vienna n.d.[1957?], 16 p. IISG, TAM 1947 International Socialistisk Ungdomslejr, København 1947. Lejrbog, n.pl.n.d., 59 p. ABA, ARAB, IISG Lindèn, Ib: Lejren paa Bellahøj. Et billedhefte om det første internationale socialdemokratiske ungdomsstævne efter krigen, n.pl. n.d., 64 p. ABA, ARAB, IISG 1948 Camp-book- Carnet de Camp- Lagerbuch. Camp of International Union of Socialist Youth, Ebensee, 19.-29. Juli 1948,[Sozialistische Jugend Österreichs] n.d., 32 p. English, French, German and Dutch text. IISG International Camp of Socialist Youth, Ebensee 1948. wir/IUSY, Sozialistische Jugend Österreichs, Wien 1948, no pagination, German, English, French text. AAJB, ABA, FES, IISG 1949 Molenaar, Bob: 3 years I.U.S.Y. 1946-1949, Press and Information Bureau of the International Union of Socialist Youth, Amsterdam 1949, 20 p. AAJB, ABA, IISG Molenaar, Bob: Tres Años de Unión Internacional de Juventudes Socialistas. 1946-1949, Oficina de Prensa e Informacion de la Unión Internacional de Juventudes Socialistas, Amsterdam 1949, 24 p. ABA, IISG 1950 Internationellt Ungdomsläger 1950. Stockholm 12.7.-19.7., Stockholm 1950, 64 p., Swedish, Finnish, English, German and French text