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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 14 (2); 18 (, 3, 5-6); 19 (, 1-2, 3-5, 6, 7-8); 20 (, 1 to 6, 7-8); 21 (, 1 to 8); 22 (, 1 to 8); 23 (, 1 to 8); 24 (, 1-2, 3 to 8); 25 (, 1 to 8); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 12); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 6, 7-9, 10-12); 37 (, 1, 2, 4, 5-7, 8-10, 11-12); 38 (, 1 to 4); 2001; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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1 to 6
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 14(2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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14, 19 to 39
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 19(1-8), 2007: 20(1-8), 2008: 21(1-8), 2009: 22(1-8), 2010: 23(1-8), 2011: 24(1-8), 2012: 25(1-6), 2013: 26(1-12), 2014: 27(1-12), 2015: 28(1, 4-12), 2016: 29(1-12), 2017: 30(1-12), 2018: 31(1-12), 2019: 32(1-12), 2019/2020: 33(1-12), 2021: 34(1-12), 2022: 35(1-12), 2023: 36(2-12), 2024: 37(1-10), 2025: 38(1-6), 2026: 39(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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25, 32
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LOCKSS Archive
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Preserved
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2026-02-09
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26 to 31
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Library of Congress
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Preserved
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2025-04-07
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29 (11); 31 (3 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 7-9, 10-12); 37 (1 to 5-7, 8-10); 38 (1)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 1 (1 to 6); 2 (1 to 7); 3 (1 to 9, 11, 12); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 5); 19 (1, 3, 6, 7); 21 (1 to 8); 22 (1 to 8); 23 (1 to 8); 24 (1, 3 to 8); 25 (1 to 8); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1-12, 2 to 6, 7-9); 37 (1 to 5, 8, 11)
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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 (1 to 6); 2 (1 to 7); 3 (1 to 9, 11, 12); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 5); 19 (1, 3, 6, 7); 21 (1 to 8); 22 (1 to 8); 23 (1 to 8); 24 (1, 3 to 8); 25 (1 to 8); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1-12, 2 to 6, 7-9); 37 (1 to 5, 8, 11)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 27 (1 to 9, 11, 12)
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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 : 27 (1 to 9, 11, 12)
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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 : 16 (1); 18 (3); 19 (1-2, 3-5, 6, 7-8); 20 (1-6, 7-8); 21 (1-8); 22 (1-7); 23 (1, 3-8); 24 (1-2, 3-8); 25 (1-8); 26 (1-12); 27 (1-12); 28 (1-12); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-9)
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