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Internet Archive
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Preserved
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2025-08-08
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16 to 20
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : Register 1956-1992 (1-32); Sonderheft; 1 (4); 2 (1); 3 (JG); 4; 5; 6; 7; 8; 9; 10 (1-2, 3, 4); 11 (1-2, 3, 4); 12 (1-2, 3, 4); 13 (1-2, 3, 4); 14 (1-2, 3, 4); 15 (1-2, 3-4); 16 (1, 2-3, 4); 17 (1-2, 3, 4); 18 (1); 19 (3-4); 20 (1-2, 3-4); 21 (1-2, 3-4); 22 (1 to 4); 23 (1); 24 (2 to 4); 25 (1 to 4); 26 (JG); 27; 28; 29 (1); 30 (2 to 4); 31 (1 to 4); 32 (1-2, 3-4); 33 (1 to 4); 34 (1-2, 3-4); 35 (1 to 4); 36 (1-2, 3-4); 37 (1-2, 3, 4); 38 (1-2, 3, 4); 39 (1-2, 3-4); 40 (1-2, 3-4); 41 (1-2, 3, 4); 42 (1-2, 3, 4); 43 (1-2, 3, 4); 44 (1-2, 3-4); 45 (1, 2, 3-4); 46 (1, 2, 3-4); 47 (1-2, 3-4); 48 (1-2, 3, 4); 49 (1-2, 3-4); 50 (1, 2, 3-4); 51 (1, 2, 3-4); 52 (1, 2, 3-4); 53 (1, 2, 3-4); 54 (1-2, 3-4); 55 (1-2, 3-4); 56 (1-2)
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Portico
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Preserved
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2026-04-30
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Preserved : 1973: 18(1), 1974: 19(1-4), 1975: 20(1-2), 1976: 21(1-2)
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Portico
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Preserved
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2026-04-30
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Preserved : 1982: 27(JG)
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Portico
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Preserved
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2026-04-30
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Preserved : 2012: 52(2-4), 2013/2016: 53(1-4), 2014/2017: 54(1-4), 2015/2017: 55(1-4), 2016: 56(1-2)
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Library of Congress
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Preserved
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2025-04-07
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52 (2, 3-4); 53 (1 to 3-4); 54 (1-2, 3-4); 55 (1-2, 3-4); 56 (1-2)
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