Co-Chairs: Stefan Schönland & Ute Hegenbart
Location: Tarragona, Spain (moved virtual)
Chairman: Joan Blade
Year:2010
Year:2006
Year:2004
Year:2001
Year:1998
Year:1993
Year:1990
Year:1987
Year:1984
Year:1979
Chairman:Corino de Andrade
Year:1974
Year:1967