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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 14 (1 to 6); 15 (, 1 to 6); 16 (, 1 to 7); 17 (, 1 to 7); 18 (, 1 to 7); 19 (, 1 to 7); 20 (, 1 to 7); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 6); 33 (, 1 to 3); 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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14 to 33
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 14(1-6), 2007: 15(1-6), 2008: 16(1-7), 2009: 17(1-7), 2010: 18(1-7), 2011: 19(1-7), 2012: 20(1-5, 7), 2013: 21(1-5), 2014: 22(1-6), 2015: 23(2-6), 2016: 24(1-6), 2017: 25(1-6), 2018: 26(1-6), 2019/2020: 27(1-6), 2020: 28(1-6), 2021: 29(1-6), 2022: 30(1, S 1, 2-6), 2023: 31(1-6), 2024: 32(1-6), 2025: 33(1, S 1, 2-6)
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LOCKSS Archive
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In Progress
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2026-02-09
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20, 27
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LOCKSS Archive
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Preserved
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2026-02-09
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21 to 26
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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 : 2 (1 to 7); 3 (Suppl 1, 1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 7); 17 (1 to 7); 18 (1 to 3, 5 to 7); 19 (1 to 7); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (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 : 2 (1 to 7); 3 (Suppl 1, 1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 7); 17 (1 to 7); 18 (1 to 3, 5 to 7); 19 (1 to 7); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (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 : 14 (1-6); 15 (1, 3-6); 16 (1-7); 17 (1-4, 6, 7); 18 (1-7); 19 (1-7); 20 (1-7); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-6); 25 (1-6); 26 (1-6); 27 (2-5)
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Library of Congress
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Preserved
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2025-04-07
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26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (S1, 1 to 6); 31 (1 to 6); 32 (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 : 16 (1, 2); 18 (3 to 7); 19 (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 : 16 (1, 2); 18 (3 to 7); 19 (1 to 3)
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