Gerrit Herrema,Buitenpost
20/05/1987
03/06/1987
08/06/1987
08/06/1987
22/08/1987
13/05/1988
18/06/1988
29/06/1988
05/07/1988
05/07/1988
05/07/1988
19/07/1988
29/07/1988
08/08/1988
13/08/1988
18/08/1988
18/08/1988
27/08/1988
31/08/1988
03/09/1988
07/06/1989
14/06/1989
28/06/1989
29/07/1989
24/11/1990