Tamerus (2002)
Tamerus (2003)
Schmetz (1997)
Michiels (2007)
Niederholzer (1951)
Kennett (1964)
Garrett (2000)
Schnabel (1963)
Martin (1961)
Stubbs (1974)
Kennett (1962)
de Boer (1998)
Paskesen (1974)
Laburnum (1987)
Bögemann (1990)
Michiels (2009)
de Cooker (2011)
Claes (1997)
L. Geerts (1999)
L. Geerts (2001)
Michiels (2006)
Willems (2011)
Blackwell J. 1970 UK
Vandenbussche (2009)
Michiels (2011)
van den Brink (2012)