88 According to Luza(p. 209 f) an international IUSY Information Bulletin was published in Spanish – the Bulletin was duplicated by the Spanish federation in 1948-50 and thereafter printed. International Literary Agency/Internationale Literarische Agentur The SI-bureau decided to call a conference of social democratic publishers, which convened at Heidelberg in June 1955. The organization had members in e.g. Austria, Denmark, Finland, Germany, the Netherlands, Norway, Sweden, Switzerland and perhaps other countries. The organization existed during the 1950s – conferences were held in Frankfurt, 1957, Vienna and Berlin, 1958 – and 1960s, at least its periodical did. The Agency participated in the exhibition’The Socialist Book’ in Brussels 1964 in connection with the 100 th anniversary of the Socialist International, and planned to publish several books(SI Circular B 36/63). FES: Archival holdings, Nachlass Gustav Schmidt-Küster 1955­1955 Braunthal, Julius: Der gegenwärtige Stand der sozialistischen Literatur, Bielefeld 1955,? p. FES Periodicals: Ila-news. Internationale literarische agentur, Stockholm, 1957-1959, no. 1-3; Second series, Frankfurt 1964-1970. FES(+ microfilm) International Friends of Nature/Internationale des Amis de la Nature/Naturfreunde­Internationale The organization was founded in Vienna in 1895, but soon spread to the surrounding countries. Until 1950 the World organization[ Weltverein] of the Friends of Nature could be called a centralized organization and did not become an International. After the first world war, the Friends of Nature existed in several European countries and in the USA where it had been founded by immigrants from the German-speaking countries. After 1933/34 political emigrants founded new organizations in other countries. In 1934 headquarters were forced to move to Switzerland where they remained until 1988 when they returned to Vienna. The International was formally founded in 1950 as a federation of nationally constituted organizations. After 1989/90 bonds to new and refounded members in Eastern Europe were established, but also to new organizations in Western Europe, Africa, Asia and Australia. The International is on its way to developing into a worldwide organization. SSA: Archival holdings in the archives of the Swiss organization IISG: A collection 1932-1979 eco: A large collection of the printed material 1950­1950 Protokoll des 1. Kongresses Naturfreunde-Internationale 1950, Naturfreunde­Internationale, Olten, 44 p. ECO, FES, Statuten der Naturfreunde-Internationale(NFI), Zentralausschuss des Touristen-Vereines