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CLOCKSS Archive
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Preserved
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2026-05-25
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18 to 33
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Portico
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Preserved
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2026-05-28
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Preserved : 2011: 18(2-3, 5), 2012: 19(1-12), 2013: 20(1-7, 9, 11-12), 2014: 21(1-9, 11), 2015: 22(1-12), 2016: 23(1-12), 2017: 24(1-12), 2018: 25(1-12), 2019: 26(1-12), 2020: 27(1-12), 2021: 28(1-12), 2022: 29(1-12), 2023: 30(1-12), 2024: 31(1-12), 2025: 32(2-12), 2026: 33(1-3)
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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 : 19 (1-12); 20 (1-12); 21 (1-12); 22 (1-12); 23 (1-12); 24 (1-12); 25 (1-12); 26 (1-9)
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Library of Congress
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Preserved
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2025-04-07
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24 (10); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 8)
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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 9, 11, 12); 3 (1 to 9, 11); 18 (1 to 6); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (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 : 2 (1 to 9, 11, 12); 3 (1 to 9, 11); 18 (1 to 6); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12)
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