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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 9
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 5(1), 2008: 6(1, S 1), 2009: 7(1), 2010: 8(1), 2011: 9(1, S 1), 2012: 10(1, S 1), 2008/2013: 11(1, S 1, 2, S 2), 2008: 12(1), 2015: 13(1), 2016: 14(1), 2017: 15(1-2), 2018: 16(1-2), 2019: 17(1, S 2), 2020: 18(1, S 1, S 3), 2021: 19(1, S 1), 2022: 20(1, S 1, S 2), 2023/2024: 21(1, S 1, S 2), 2024: 22(1, S 1, S 2), 2025: 23(1, S 1, S 2), 2026: 24(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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6 to 12
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CLOCKSS Archive
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Preserved
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2026-02-09
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5 to 24
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LOCKSS Archive
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In Progress
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2026-02-09
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10, 17
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LOCKSS Archive
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Preserved
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2026-02-09
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11 to 16
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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 (Suppl 1, 1); 2 (Suppl 1, 1); 8; 9 (Suppl 1, 1); 11 (Suppl 1, 1); 12 (Suppl 1, 1); 13 (Suppl 1, 1); 14 (Suppl 1, 1); 15 (Suppl 1, 1); 17 (Suppl 1, 1); 18 (Suppl 1, 1); 19 (Suppl 1, 1); 21 (Suppl 2, 1); 22 (Suppl 2, 1); 23 (Suppl 1, 1)
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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 (Suppl 1, 1); 2 (Suppl 1, 1); 8; 9 (Suppl 1, 1); 11 (Suppl 1, 1); 12 (Suppl 1, 1); 13 (Suppl 1, 1); 14 (Suppl 1, 1); 15 (Suppl 1, 1); 17 (Suppl 1, 1); 18 (Suppl 1, 1); 19 (Suppl 1, 1); 21 (Suppl 2, 1); 22 (Suppl 2, 1); 23 (Suppl 1, 1)
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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); 2 (Suppl 1, 1); 5; 6 (Suppl 1, 1); 7; 8; 9; 11 (2); 12 (1); 13; 14; 15 (2); 16 (1, 2); 17 (1); 18 (Suppl 1, 1); 19 (Suppl 1, 1); 21 (Suppl 1, 1)
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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); 2 (Suppl 1, 1); 5; 6 (Suppl 1, 1); 7; 8; 9; 11 (2); 12 (1); 13; 14; 15 (2); 16 (1, 2); 17 (1); 18 (Suppl 1, 1); 19 (Suppl 1, 1); 21 (Suppl 1, 1)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved :
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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 : 5 (1); 6; 7; 8; 9; 10; 11; 12
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British Library
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Preserved
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2019-09-18
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Preserved : 5 (1), 6 (1; Supp 1), 7 (1), 8 (1), 9 (1; Supp 1), 10 (1; Supp 1), 11 (Supp 1)
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