Jan Hendrik Koops,Assen

03/06/1972 14/06/1974 27/06/1974 16/07/1974 02/08/1974 07/06/1975 02/07/1975 09/06/1976 12/06/1976 24/06/1976 29/07/1976 19/09/1976 01/06/1977 02/06/1977 23/06/1977 12/07/1977 24/08/1977 07/09/1977 08/09/1977 10/09/1977 20/09/1977 23/05/1978 02/06/1978 07/06/1978 16/06/1978 17/06/1978 22/06/1978 10/07/1978 18/08/1978 22/08/1978 26/08/1978 06/09/1978 21/09/1978 15/05/1979 08/06/1979 12/06/1979 13/06/1979 14/06/1979 22/06/1979 07/09/1979 14/09/1979 13/06/1980