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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 18 (4); 19 (, 3-4); 20 (, 1-2, 4); 2010; 2014; 2015
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 12(1-4), 2005: 13(1-4), 2006: 14(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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12 to 22
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CLOCKSS Archive
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Preserved
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2026-02-09
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12 to 29
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 15(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 16(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2010: 18(4), 2014: 19(1-2), 2015: 20(1-4), 2016: 21(1-4), 2017: 22(1-4), 2019: 23(1-4), 2020: 24(1-4), 2021: 25(1-4), 2022: 26(1-2), 2023: 27(1-4), 2024: 28(1-4), 2025: 29(1-4)
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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 : 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1, 2, 3-4); 20 (1-2, 3, 4); 21 (1-4); 22 (1-2, 3, 4); 23 (1-2)
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Library of Congress
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Preserved
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2025-04-07
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23 (1-2, 3-4); 24 (1-2, 3-4); 25 (1-2, 3-4); 26 (1-2, 3-4); 27 (1-2, 3-4); 28 (1-2)
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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, 3, 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 3); 21 (Suppl 1, 1 to 4); 22 (1, 3, 4); 25 (1-2, 3-4); 26 (1-2, 3-4); 27 (1-2, 3-4); 28 (1, 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 : 2 (1, 3, 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 3); 21 (Suppl 1, 1 to 4); 22 (1, 3, 4); 25 (1-2, 3-4); 26 (1-2, 3-4); 27 (1-2, 3-4); 28 (1, 3)
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