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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1-2, 3, 4); 6 (, 1 to 6); 11 (, 2, 7); 13 (, 1, 2-4, 5, 7-8); 14 (, 1-4, 5-7, 8); 15 (, 1 to 8); 16 (, 1, 2, 3-4, 5 to 8); 17 (, 1 to 6, 7-8); 18 (, 1, 2, 3-4, 5, 6, 7-8); 19 (, 2, 3-4, 5-6, 7, 8); 20 (, 1 to 5); 21 (, 1 to 5, 6-8); 22 (, 1-4, 5-6, 7-8); 23 (, 1 to 6, 7-8); 24 (, 1 to 8); 25 (, 1 to 8); 26 (, 1 to 8); 27 (, 1 to 4, 5-6, 7, 8); 28 (, 1 to 6); 1998; 1999; 2000; 2001; 2002; 2003; 2008; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 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 : 1999: 2(1-4), 2000: 3(1-4), 2001: 4(1-4), 2002: 5(1-4), 2003: 6(1-6), 2004: 7(1-6), 2005: 8(1-6), 2006: 9(1-6), 2007: 10(1-8), 2008: 11(1-8), 2009: 12(1-8), 2010: 13(1-8), 2011: 14(1-8), 2012: 15(1-8), 2013: 16(1-8), 2014: 17(1-8), 2015: 18(1-8), 2016: 19(1-8), 2017: 20(1-8), 2018: 21(1-8), 2019: 22(1-8), 2020: 23(1-8), 2021: 24(1-8), 2022: 25(1-8), 2023: 26(1-8), 2024: 27(1-8), 2025: 28(1-8), 2026: 29(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 29
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 27
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CLOCKSS Archive
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Preserved
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2026-02-09
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11 to 20
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LOCKSS Archive
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In Progress
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2026-02-09
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28
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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 (sup1, 1 to 8); 2 (1 to 5, 6-7, 8); 3 (1 to 4); 4 (1 to 4); 5 (1-2, 3, 4); 6 (1 to 6); 7 (1 to 6); 8 (1, 2, 3-5, 6); 9 (1 to 6); 11 (1, 2, 3-4, 5-6, 7, 8); 12 (1 to 4, 5-6, 7, 8); 13 (1, 2-4, 5, 6, 7-8); 14 (1-4, 5-7, 8); 15 (1 to 8); 16 (1, 2, 3-4, 5 to 8); 17 (1 to 6, 7-8); 18 (1, 2, 3-4, 5, 6, 7-8); 19 (1, 2, 3-4, 5-6, 7, 8); 21 (1 to 5, 6-8); 22 (1-4, 5-6, 7-8); 23 (1 to 7); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 4, 5-6, 7, 8); 28 (1, 2, 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 (1-4); 2 (2, 3); 3 (2); 4 (1-4); 5 (1-2, 3); 6 (1-3, 5); 7 (1, 2, 4); 8 (3-5, 6); 9 (1, 4-6); 10 (1-2, 3, 5, 6, 8); 11 (1, 2, 3-4, 7, 8)
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Library of Congress
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Preserved
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2025-04-07
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20 (2 to 6-7, 8); 21 (1 to 6-8); 22 (1-4, 5-6, 7-8); 23 (1 to 7, 7-8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 5-6, 7, 8)
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