L. Auerbach U.S.A. 1960-1965
A. Speiser Switzerland 1965-1968
A. A. Dorodnicyn Russia 1968-1971
H. Zemanek Austria 1971-1974
R. I. Tanaka U.S.A. 1974-1977
P. A. Bobillier Switzerland 1977-1983
K. Ando Japan 1983-1986
A. W. Goldsworthy Australia 1986-1989
Bl. Sendov Bulgaria 1989-1992
A. Rolstadas Norway 1992-1995
K. Bauknecht Switzerland 1995-1998
P. Bollerslev Denmark 1998-2001
R. Aiken U.S.A. 2001
W.Grafendorfer Austria 2001-2002
K. Brunnstein Germany 2002-2007
B. von Solms South Africa 2007-2010
L. Strous Netherlands 2010-2016
M. Hinchey Ireland 2016-2022
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