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CLOCKSS Archive
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Preserved
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2026-04-27
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19 to 22
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Portico
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Preserved
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2026-04-30
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Preserved : 2006: 19(1-6), 2007: 20(1-6), 2008: 21(1-6), 2009: 22(1-6)
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 12)
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LOCKSS Archive
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In Progress
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2026-04-27
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26 to 33
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CLOCKSS Archive
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Preserved
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2026-04-27
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26 to 38
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Portico
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Preserved
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2026-04-30
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Preserved : 2013: 26(1-6), 2014: 27(1-6), 2015: 28(4-12), 2016: 29(1-12), 2017: 30(1-12), 2018: 31(1-12), 2019: 32(1-12), 2019/2020: 33(1-12), 2021: 34(1-12), 2022: 35(1-12), 2023: 36(2-12), 2024: 37(1-11), 2025: 38(1-12)
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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 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (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 : 3 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (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 : 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 26 (1-6); 27 (1-6); 28 (1-12); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-12)
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Library of Congress
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Preserved
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2025-04-07
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31 (2 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 11); 38 (1)
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