On 28 December 1948, the representatives of the United States, Belgium, France, Luxembourg, the Netherlands and the United Kingdom, meeting in London, decide to establish the International Authority for the Ruhr (IAR).

On 24 June 1948, at the end of the Warsaw Conference attended by the Foreign Ministers of the USSR and the countries of Eastern Europe, a declaration is adopted condemning the measures adopted in London by the Six-Power Conference on Germany.

On 19 October 1951, Belgium, France, Luxembourg, the Netherlands, the United Kingdom and the United States adopt a protocol in Paris which terminates the activities of the International Authority for the Ruhr.

On 27 May 1952, in the light of the establishment of the European Coal and Steel Community, the United States, Belgium, France, Luxembourg, the Netherlands and the United Kingdom sign an agreement in Paris which terminates the activities of the International Authority for the Ruhr.

On 6 December 1951, Carl Friedrich Ophüls, Civil Administrator in the Federal Ministry of Justice, retraces the history of the International Authority for the Ruhr (IAR) from the time of its establishment in April 1949 to its dissolution upon the entry into force of the Schuman Plan for coal and steel.

On 28 June 1951, Albert Bureau, Director of the Iron and Steel Industry in the French Ministry of Industrial Production, drafts a report on the implications of the demerging of the German iron and steel industry in the Ruhr industrial basin.

On 21 August 1952, the French daily newspaper Le Monde describes the industrial power of West Germany’s Ruhr basin.

In this discussion paper of 3 May 1950, Jean Monnet considers the compatibility between the international control of the Ruhr and the establishment of the High Authority of the European Coal and Steel Community (ECSC).

Anonymous French note on the coexistence of the International Authority for the Ruhr and the High Authority of the European Coal and Steel Community (ECSC).