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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 22 (1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1, 3, 4); 37 (, 1 to 4); 38 (, 1, 2); 39 (, 1 to 4); 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024
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CLOCKSS Archive
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Preserved
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2026-02-09
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22 to 40
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 22(1-4), 2008: 23(1-4), 2009: 24(1-4), 2010: 25(1-4), 2011: 26(1-4), 2012: 27(1-4), 2013: 28(1-4), 2014: 29(1-4), 2015: 30(1-4), 2016: 31(1-4), 2017: 32(1-4), 2018: 33(1-4), 2019/2020: 34(1-4), 2020: 35(1-4), 2021: 36(1, S 1, 2-4), 2022: 37(1-4), 2023: 38(1-4), 2024: 39(1-4), 2025: 40(1-3)
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LOCKSS Archive
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In Progress
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2026-02-09
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27, 34
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LOCKSS Archive
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Preserved
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2026-02-09
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28 to 32
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Library of Congress
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Preserved
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2025-04-07
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32 (3, 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1, S1, 3, 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 3)
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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 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (Suppl 1, 1 to 4); 37 (1 to 4); 38 (1, 2); 39 (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 : 3 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (Suppl 1, 1 to 4); 37 (1 to 4); 38 (1, 2); 39 (1 to 3)
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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 : 25 (2 to 4); 26 (1, 2)
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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 : 25 (2 to 4); 26 (1, 2)
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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 : 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1, 2)
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