Maurice Kurtz, U.S.A.
André Josset, France
Jean Darcante, France
Lars af Malmborg, Sweden
André-Louis Périnetti, France
Jennifer M. Walpole, Australia
Tobias Biancone, Switzerland |
1948 - 1949
1949 - 1957
1957 - 1980
1981 - 1983
1984 - 2003
2003 - 2008
since 2008 |
