de Graaff (1987)
Franck (1991)
Murru (1988)
Castro (1969)
Michiels (2010)
Decoster (2007)
Martin (1959)
Soo Yun (1969)
Michiels (2011)
Gagnon (1964)
Vandenbussche (2009)
Michiels (2009)
van den Brink (2012)
