Holdings
1.1972, 0-5.1976, 23/24; 5.1976, 25/26; 6.1977,29; 6.1977, 29-31; 7.1978, 33 - 10.1981, 56; 10.1981, 58 - 18.1989, 133; 18.1989, 135-136; 19.1990, 146/147/148; 20.1991,152 u.157 u.159; 21.1992, 164 u.171/172/173; 22.1993, 174; 22.1993,176-23.1994,185; 23.1994,187- 25.1996,204; 25.1996,206-209; 25.1996,211-30.2001,259; 30.2001,261-