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CLOCKSS Archive
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Preserved
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2026-02-09
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4 to 21
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 4(1-4), 2009: 5(1-4), 2010: 6(1-4), 2011: 7(1-4), 2012: 8(1-4), 2013: 9(1-4), 2014: 10(1-3), 2015: 11(2-4), 2016: 12(1-4), 2017: 13(1-6), 2018: 14(1-6), 2019: 15(1-6), 2019/2020: 16(1-6), 2021: 17(1-6), 2022: 18(1-12), 2023: 19(1-12), 2024: 20(1-10, 12), 2025: 21(1, 3-12)
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LOCKSS Archive
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In Progress
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2026-02-09
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8
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LOCKSS Archive
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Preserved
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2026-02-09
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9 to 15
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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 4); 2 (1 to 9, 11, 12); 11 (1 to 4); 12 (1 to 4); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12)
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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 4); 2 (1 to 9, 11, 12); 11 (1 to 4); 12 (1 to 4); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12)
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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 : 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-6); 14 (1-6); 15 (1-5)
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