Holdings
Suppl. zu 18.1986,2; 19.1987,2u.5; 20.1988,2u.5; 21.1989,2u.5; 22.1990,2; 23.1991,4; 24.1992,5-6u.9; 25.1993,5; 26.1994,5u.10; 27.1995,5; 28.1996,5u.10; 29.1997,5-7; 30.1998,4-5u.10; 31.1999,1u.5u.7u.11; 32.2000,3u.5u.7u.9; 33.2001,6-7; 37.2005,11; 40.2008,7u.11
[Die Supplemente erscheinen überwiegend nur online]