Year Volume Number
1966/1967 3 (1-4)
1968/1969 4 (1-4)
1970 5 (1-4)
1971 6 (1-4)
1972 7 (1-4)
1973 8 (1-4)
1974 9 (1-4)
1975 10 (1-4)
1976 11 (1-4)
1977 12 (1-4)
1978 13 (1-4)
1979 14 (1-4)
1980 15 (1-4)
1981 16 (1-4)
1982 17 (2-4)
1983 18 (1-4)
1984 19 (1-4)
1985 20 (1-4)
1986 21 (1,
2, 4)
1987 22 (1-4)
1988 23 (1,
3, 4)
1989 24 (1-4)
1990 25 (1-4)
1991 26 (1-4)
1992 27 (1-5)
1993 28 (1-5)
1994 29 (1-6)
1995 30 (2-6)
1996 31 (1-6,
supplement)
1997 32 (1-6,
supplement)
1998 33 (1-6,
supplement, directory)
1999 34 (1)