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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 6); 2 (, 1 to 6); 3 (, 1 to 6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 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 6); 19 (, 1 to 3); 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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1 to 19
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 1(1-6), 2008: 2(1-6), 2009: 3(1-6), 2010: 4(1-6), 2011: 5(1-6), 2012: 6(1-6), 2013: 7(1-3, 6), 2014: 8(1-4, 6), 2015: 9(2-6), 2016: 10(1-6), 2017: 11(1-6), 2018: 12(1-6), 2019/2020: 13(1-6), 2020: 14(1-6), 2021: 15(1, S 1, 2-6), 2022: 16(1-5), 2023: 17(1, S 1, 2, S 2, 3-6), 2024: 18(1, S 1, 2, S 2, 3-6), 2025: 19(1, S 1, 2, S 2, 3, S 3, 4-6)
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LOCKSS Archive
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In Progress
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2026-02-09
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6, 13
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LOCKSS Archive
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Preserved
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2026-02-09
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7 to 12
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Library of Congress
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Preserved
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2025-04-07
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11 (6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1, S1, 2 to 6); 16 (1, S1, 2 to 6); 17 (S1, 1, S2, 2 to 6); 18 (S1, 1 to 4)
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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 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (Suppl 1, 1 to 6); 16 (Suppl 1, 1 to 6); 17 (Suppl 1, 1 to 5); 18 (Suppl 2, 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 : 1 (1 to 6); 2 (1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (Suppl 1, 1 to 6); 16 (Suppl 1, 1 to 6); 17 (Suppl 1, 1 to 5); 18 (Suppl 2, 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 6); 5 (1 to 3)
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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 6); 5 (1 to 3)
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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, 3-6); 2 (1-6); 3 (1-6); 4 (1-6); 5 (1-6); 6 (1-6); 7 (1-6); 8 (1-6); 9 (1-6); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-5)
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