Austria

1972 15^th Meeting, Strebersdorf
1980 23^rd Meeting, Strebersdorf

Belgium

1979 22^nd Meeting, Ghent
2000 43^rd Meeting, Lanaken

China

2009 52^nd Meeting, Huhhot, Inner Mongolia

Czech Republic

1999 42^nd Meeting, Prague

Denmark

1968 11^th Meeting, Hørsholm

Federal Republic of Germany

1958 1^st Meeting, Mainz
1959 2^nd Meeting, Mainz
1960 3^rd Meeting, Burg Liebenstein
1965 8^th Meeting, Wahlscheid
1974 17^th Meeting, Bad Honnef
1984 27^th Meeting, Walberberg
1991 34^th Meeting, Berlin
2001 44^th Meeting, Walberberg
2006 49^th Meeting, Berlin
2019 62^nd Meeting, Friedensau
2024 66^th Meeting, Göttingen

Finland

1963 6^th Meeting, Mätinkylä/Helsinki
1976 19^th Meeting, Helsinki
1998 41^st Meeting, Majvik

France

1970 13^th Meeting, Strasbourg
1994 37^th Meeting, Chantilly

German Democratic Republic

1969 12^th Meeting, Berlin (East)
1988 31^st Meeting, Weimar

Holland

1964 7^th Meeting, De Pietersberg
1977 20^th Meeting, Leiden

Hungary

1971 14^th Meeting, Szeged
1990 33^rd Meeting, Budapest
1996 39^th Meeting, Szeged
2002 45^th Meeting, Budapest
2017 60^th Meeting, Székesfehérvár
2022 64^th Meeting, Budapest

Israel

1981 24^th Meeting, Jerusalem

Italy

1966 9^th Meeting, Ravello
1985 28^th Meeting, Venice

Japan

1995 38^th Meeting, Kawasaki

Kazakhstan

1993 36^th Meeting, Almaty
2023 65^th Meeting, Astana

Kyrgyzstan

2018 61^st Meeting, Bishkek

Mongolia

2021 63^rd Meeting, Ulaanbaatar (due to the Covid-19 pandemic, most participants joined via zoom)

Norway

1989 32^nd Meeting, Oslo

Romania

2008 51^st Meeting, Bucharest
2012 55^th Meeting, Cluj-Napoca

Russian Federation (see USSR for the 29th Meeting, Tashkent 1986)

2005 48^th Meeting, Moscow
2007 50^th Meeting, Kazan, Tatarstan
2010 53^rd Meeting, St. Petersburg
2014 57^th Meeting, Wladiwostok

Slowakia

2015 58^th Meeting, Dunajská Streda

Sweden

1982 25^th Meeting, Uppsala

Taiwan, ROC

1992 35^th Meeting, Taipei

Turkey

1973 16^th Meeting, Ankara
2003 46^th Meeting, Ankara
2013 56^th Meeting, Izmit
2016 59^th Meeting, Ardahan

United Kingdom

1961 4^th Meeting, Cambridge
1967 10^th Meeting, Manchester
1978 21^st Meeting, Manchester
2004 47^th Meeting, Cambridge

United States of America

1962 5^th Meeting, Bloomington, Indiana
1975 18^th Meeting, Bloomington, Indiana
1983 26^th Meeting, Chicago, Illinois
1987 30^th Meeting, Bloomington, Indiana
1997 40^th Meeting, Provo, Utah
2011 54^th Meeting, Bloomington, Indiana

USSR (see Russian Federation for Meetings after the dissolution of the USSR)

1986 29^th Meeting, Tashkent