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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 43 (2); 58 (, 1, 2); 59 (, 1, 2); 60 (, 1, 2); 61 (, 1, 2); 62 (, 1, 2); 63 (, 1, 2); 64 (, 1, 2); 65 (, 1, 2); 66 (, 1); 2002; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 1961: 2(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1963: 4(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1969: 10(2), 1970: 11(1-2), 1971: 12(1), 1972: 13(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1977: 18(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1991: 32(2-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 34(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 43(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 45(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 49(1-2), 2009: 50(1-2), 2010: 51(1-2), 2011: 52(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2014: 55(2), 2015: 56(1-2), 2016: 57(1-2), 2017: 58(1-2), 2018: 59(1-2), 2019: 60(1-2), 2020: 61(1-2), 2021: 62(1-2), 2022: 63(1-2), 2023: 64(1-2), 2024: 65(1-2), 2025: 66(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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11 (2); 32 (2 to 4); 49 (1, 2); 50 (1, 2); 51 (1, 2); 52 (1, 2); 55 (1, 2); 56 (1, 2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 60 (1, 2); 63 (2); 64 (1, 2); 65 (1, 2)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 1 (2 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1, 2-3); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (3, 4); 12 (2 to 4); 13 (1 to 3); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (Supplement, 1 to 4); 19 (Supplement, 1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1-2, 3-4); 28 (1-2, 3-4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1, 2); 34; 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 51 (1, 2); 52 (1, 2); 53 (1, 2); 54 (1, 2); 55 (1, 2); 56 (1, 2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 61 (1, 2); 62 (1, 2); 63 (1, 2); 64 (1, 2)
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