Archived Bureau Minutes
- 10 - 11 April, 1958, London
- 29 August, 1959, Munich
- 23 - 27 May 1960, Leningrad
- 25 - 26 April, 1960, Leningrad
- 17 - 18 July, 1962, Brussels
- 5 - 9 July, 1963, London
- 23 - 25 March, 1964
- 3 - 5 July, 1965, Paris
- 5 - 9 July, 1963, London
- 24 - 25 February, 1966, Frankfurt
- 28 August, 1967, Prague
- 2 September, 1967, Prague
- 29 - 30 October, 1968, Monte Carlo
- 4 July, 1969, Cortina D'Ampezzo
- 7 July, 1969, Cortina D'Ampezzo
- 7 July, 1969, Cortina D'Ampezzo
- 2 - 3 October, 1970, Vienna
- 20 July, 1971, Washington, DC
- 23 July, 1971, Washington, DC
- 23 July, 1971, Washington, DC
- 24 - 25 September, 1972, Strasbourg
- 28 August, 1973, Munich
- 31 August, 1973, Munich
- 31 August - 1 September, 1974, Brussels
- 8 September, 1975, Madrid
- 11 September, 1975, Madrid
- 14 - 15 September, 1976, Strasbourg
- 18 August, 1977, Warsaw
- 21 August, 1977, Warsaw
- 1 September, 1978, Brussels
- 8 September, 1979, Davos
- 10 September, 1979, Davos
- 1 - 2 September, 1980, Zurich
- 31 August, 1981, Leuven
- 2 September, 1981, Leuven
- 2 September, 1981, Leuven
- 13 - 14 September, 1982, Prague
- 24 August, 1983, Lyngby
- 26 August, 1983, Lyngby
- 16 - 17 September, 1984, Oxford
- 4 - 5 September, 1985, Ecole Supericure de Commerce de Lyon
- 7 September, 1985, Ecole Supericure de Commerce de Lyon
- 28 - 29 September, 1985, Oxford
- 19 August, 1987, Boston, USA
- 26 - 27 August, 1987, Boston, USA
- 29 August, 1987, Boston, USA
- 18 - 19 September, 1988, Oxford
- 14 - 15 August, 1989, Sweden
- 17 August, 1989, Sweden
- 23 - 24 September, 1990, Italy
- 12 - 13 August, 1991, Federal Republic of Germany
- 15 August, 1991, Federal Republic of Germany
- 12 - 13 September, 1991, Oxford
- 9 - 10 August, 1993, Portugal
- 12 August, 1993, Portugal
- 17 - 18 September, 1994, Belgium
- 8 - 9 August, 1995, Guildford
- 11 August, 1995, Guildford
- 7 - 8 September, 1996, Oxford