Correspondence (1990) with European Centre for Educational Alliances, International Council on Archives, ARSA, International Association of Universities, COEFA, CISS, AIAP, International Peace Research Association, North East NGOs, CIM, ICOM, NGO Standing Committee (meetings and reports on the 22nd NGO Conference, 11-15 June 1990), ICSU, UOIF
Colloquium on the concept of law (Paris, 27-31 July 1953): correspondence with UNESCO, final report, minutes, preparatory texts of the participants (Djordjevic, Matsudaira, I.I. Morris, Q. Martin, Mirkine-Guetzevitch, McKeon, Mahmassani, Geiger; Schneider)
Correspondence with the Federation of Documentation (Index bibliographicus) (1955-1956). Correspondence with international bibliographic companies, especially those published under the auspices of ICPHS (1957-1958)
Dictionaries: UNESCO contract (CA2/99b/1, 4 March 1964) for a Handbook of Lexicography, correspondence with UNESCO and Professor Ladislas Zgusta (1963-1966)
CISS/ICPHS contract for a symposium (Communication and the individual in contemporary society, 17-20 April 1972, Rome): minutes, contract, correspondence and financial reports sent to UNESCO, correspondence with participants, programme, original texts, correspondence with CISS, final report and preparatory texts of participants
UENSCO contract with ICSU-CISS-International Union of Psychological Sciences-ICPHS for a study on the socio-cultural consequences of the technological development of micro-computers: correspondence (1984-1985) with the contractors, report by René Berger
UNESCO contract with CISS-ICSU-CIOMS-ICPHS: organisation of a meeting on the Effects of recent technological progress, -particularly in the fields of brain research, neurophysiology, biological experimentation, genetic manipulation and drug use-, on human rights (Barcelona, 25-28 March 1985). Correspondence with participants (1984-1985), texts of interventions
UNESCO contract for a study on the theme "Brancusi: a classicism of exoticism": contract 640292 of 3 February 1982, correspondence on its cancellation (1983)