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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2, 3); 2 (1 to 3); 3 (1 to 3); 4 (1); 10 (2); 11 (1, 2); 12 (1 to 3); 13 (2); 14; 15 (1); 16 (3); 20 (2, 3); 21 (1 to 3); 23 (1 to 3); 24 (2, 3); 26 (1 to 3); 28; 29 (1, 2); 30 (1, 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1, 2, 3-4); 37 (1-2, 3, 4); 38 (1 to 4); 39 (1 to 4); 40 (1, 2); 41 (3, 4); 42 (1, 2-3, 4); 43 (1 to 4); 44 (1, 2, 3-4); 45 (1, 3, 4); 46 (1 to 4); 47 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1, 2-4); 58 (1-2, 3-4); 59 (1 to 3); 60 (1, 2); 61 (1 to 3); 62 (1 to 3); 63 (1-2); 64 (3); 65 (1-2, 3); 66 (1-2, 3); 67 (1-2, 3); 68 (1 to 3); 69 (1 to 3); 70 (1-2, 3); 76 (1 to 4); 77 (1 to 4); 78 (1, 3, 4); 79 (1 to 4); 80 (1 to 4); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 90 (1 to 4); 91 (1 to 4)
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Internet Archive
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Preserved
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2025-08-08
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48 to 74
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LOCKSS Archive
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Preserved
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2026-04-06
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61 to 90
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CLOCKSS Archive
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Preserved
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2026-04-06
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61 to 91
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LOCKSS Archive
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In Progress
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2026-04-06
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91
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Portico
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Preserved
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2026-04-02
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Preserved : 1930: 2(2)
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Portico
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Preserved
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2026-04-02
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Preserved : 1960: 30(3), 1960/1961: 31(1-2), 1961/1962: 32(1-3), 1962/1963: 33(1-4)
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Portico
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Preserved
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2026-04-02
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Preserved : 1994/1995: 61(1-3), 1996: 62(1-2), 1997: 63(1-2), 1998: 64(1-3), 1999: 65(1-3)
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Portico
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Preserved
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2026-04-02
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Preserved : 2000: 66(1-3)
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Portico
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Preserved
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2026-04-02
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Preserved : 2001: 67(1-3), 2002: 68(1-3), 2003/2004: 69(1-3), 2004: 70(1-3), 2005: 71(1-3), 2006: 72(1-3), 2007: 73(1-3), 2008: 74(1-3), 2008: 74 Suppl 1, 2009: 75(1-4), 2010: 76(1-4), 2011: 77(1-4), 2012: 78(1-4), 2013: 79(1-4), 2014: 80(1-4), 2015: 81(1-4), 2016: 82(1-4), 2017: 83(1-4), 2018: 84(1-4), 2019: 85(1-4), 2020: 86(1-4), 2021: 87(1-4), 2022: 88(1-4), 2023: 89(1-4), 2024: 90(1-4), 2025: 91(1-4)
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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 : 7 (1-2, 3); 8 (1 to 4); 9 (1 to 4); 63 (1-2); 64 (3); 65 (1-2, 3); 66 (1-2, 3); 67 (1-2, 3); 68 (1 to 3); 69 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (sup1, 1 to 3); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (3); 2 (1-3); 3 (1-3); 4 (1); 10 (2); 11 (1-3); 12 (1-3); 13 (1, 2); 14; 15 (1); 16 (3); 19 (2, 3); 20 (1-3); 21 (1-3); 23 (1-3); 24 (2, 3); 26 (1-3); 28; 29 (1, 2); 30 (1, 3); 31 (1-3); 32 (1-3); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1, 2, 3-4); 37 (1-2, 3, 4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-2, 3, 4); 42 (1, 2-3, 4); 43 (1-4); 44 (1, 2, 3-4); 45 (1-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-4); 55 (1-4); 56 (1-4); 57 (1, 2-4); 58 (1-2, 3-4); 59 (1-3); 60 (1, 2); 61 (1-3); 62 (1-3); 63 (1-2); 64 (3); 65 (1-2, 3); 66 (1-2, 3); 67 (1-2, 3); 68 (1-3); 69 (1-3); 70 (1-2, 3); 71 (1-3); 72 (1-3); 73 (1-3); 74 (1-3)
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Library of Congress
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Preserved
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2025-04-07
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76 (2); 78 (4); 80 (1); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 90 (1 to 4)
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