1980/1-12; 1981/1-12; 1983/1-11; 1984/1-12; 1985/1-12; 1986/1-6, 9-12; 1987/1-12, 1988/1-12, 1989/1-12; 1990/1-8; 1991-1995/je 1-5; 1997/1, 2, 3, 1998/1-4, 1999/1