Jan van Berkum,Irnsum

13/09/1982 23/04/1983 03/06/1984 25/05/1985 05/07/1985 03/08/1985 17/05/1986 27/06/1986 07/07/1986 15/07/1986 02/08/1986 07/08/1986 14/08/1986 16/08/1986 19/05/1987 29/05/1987 30/05/1987 02/06/1987 06/06/1987 17/06/1987 22/06/1987 25/06/1987 25/07/1987 08/08/1987 10/08/1987 22/08/1987 28/08/1987 29/08/1987 04/09/1987 13/05/1988 24/05/1988 28/05/1988 01/06/1988 04/06/1988 07/06/1988 11/06/1988 23/06/1988 29/06/1988 05/07/1988 05/07/1988 05/07/1988 19/07/1988 30/07/1988 08/08/1988 11/08/1988 13/08/1988 18/08/1988 18/08/1988 27/08/1988 31/08/1988 03/09/1988 09/09/1988 11/09/1988 24/09/1988