Bestand
1973,1-6; 1974 - 1975,1-4; 1976,1-4; 1977,1-5; 1978,1-6; 1979,1-6; 1980,1-6; 1981,1-5; 1982,1-6; 1983; 1-6; 1984,1-4; 1985,1-5; 1986,1-5; 1987,1-5; 1988,1-6; 1989,1-5; 1990,1-5; 1991,1-5; 1992,1-5; 1993,1-4; 1994,1-6; 1995,1-5; 1996,1-6; 1997,1-5; 1998,1-4; 1999,1-4; 2000,1-5; 2002,1-6; 2003,1-4; 2004,1-5; 2005,1-5; 2006,1-4; 2007,1-5; 2008 (ohne Zählung); 2009,1-2; 2010,3-5; 2011,6-7; 2012,8-10; 2013,11; 2014,12; 2016,13 -
