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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 27 (6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1 to 6); 36 (, 1 to 6); 37 (, 1 to 6); 38 (, 1 to 7); 39 (, 1 to 7); 40 (, 1 to 7); 41 (, 1 to 7); 42 (, 1 to 7); 43 (, 1 to 7); 44 (, 1 to 7); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 3); 2000; 2001; 2002; 2003; 2004; 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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CLOCKSS Archive
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Preserved
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2026-02-09
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27 to 52
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 27(6), 2001: 28(1-6), 2002: 29(1-6), 2003: 30(1-6), 2004: 31(1-6), 2005: 32(1-6), 2006: 33(1-6), 2007: 34(1-6), 2008: 35(1-6), 2009: 36(1-6), 2010: 37(1-6), 2011: 38(1-7), 2012: 39(1-4, 7), 2013: 40(1-7), 2014: 41(1-6), 2015: 42(2-7), 2016: 43(1-7), 2017: 44(1-7), 2018: 45(1-6), 2019: 46(1, S 1, 2, S 2, 3-6), 2020: 47(1-6), 2021: 48(1-6), 2022: 49(1, S 1, 2, S 2, 3-6), 2023: 50(1, S 1, 2, S 2, 3, S 3, 4-6), 2024: 51(1, S 1, 2-5), 2025: 52(S 1, 2, S 2, 3-6)
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LOCKSS Archive
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In Progress
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2026-02-09
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39, 46
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LOCKSS Archive
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Preserved
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2026-02-09
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40 to 45
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Library of Congress
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Preserved
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2025-04-07
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44 (7); 45 (1, S1, S2, 2 to 6); 46 (S1, 1, 2, S2, 3 to 6); 47 (1 to 6); 48 (1 to 6); 49 (S1, 1, 2, S2, 3 to 6); 50 (S1, 1, 2, S2, 3, S3, 4 to 6); 51 (1 to 5)
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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 : 3 (1 to 6); 27; 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6)
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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 : 3 (1 to 6); 27; 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6)
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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 : 4 (2 to 7); 5 (1 to 6); 38 (7); 39 (1 to 7); 41 (1 to 7); 42 (1 to 7); 43 (1 to 7); 44 (1 to 7); 45 (Suppl 1, 1 to 6); 46 (Suppl 1, 1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (Suppl 2, 1 to 6); 51 (Suppl 1, 1 to 6)
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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 : 4 (2 to 7); 5 (1 to 6); 38 (7); 39 (1 to 7); 41 (1 to 7); 42 (1 to 7); 43 (1 to 7); 44 (1 to 7); 45 (Suppl 1, 1 to 6); 46 (Suppl 1, 1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (Suppl 2, 1 to 6); 51 (Suppl 1, 1 to 6)
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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 : 27 (6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-4, 6); 37 (1-6); 38 (1-7); 39 (1-7); 40 (1-7); 41 (1-7); 42 (1-7); 43 (1-7); 44 (1-7); 45 (supplement-1, 1-6); 46 (supplement-1, 1-6); 51 (2)
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