1918, 1919, 1931, 1932, 1934, 1937, 1939, 1947, 1957, 1960, 1966, 1967
1968, 1970, 1972, 1973, 1977, 1979, 1980, 1982, 1983, 1985, 1990, 1994
1995,1996, 1998
1917, 1943, 1961, 1967, 1970, 1971, 1972, 1979, 1983, 1986, 1987, 1993
1998, 1999
1993, 1994, 1995
1971, 1972,1973, 1995
1987
FRESENTATIEGIDS 1999-2000