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CLOCKSS Archive
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Preserved
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2026-02-09
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15 to 34
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 15(1-12), 2008: 16(1-12), 2009: 17(1-12), 2010: 18(2-12), 2011: 19(1-12), 2012: 20(1-12), 2013: 21(1-12), 2014: 22(1-12), 2015: 23(1-12), 2016: 24(1-12), 2017: 25(1-12), 2018: 26(1-12), 2019: 27(1-12), 2019/2020: 28(1, S 1, 2-12), 2021: 29(1, S 1, 2-12), 2022: 30(1-12), 2023: 31(2-12), 2024: 32(1-11), 2025: 33(1-2, 4-7, 9-12), 2026: 34(1, S 1, 2)
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LOCKSS Archive
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In Progress
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2026-02-09
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20, 27
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LOCKSS Archive
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Preserved
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2026-02-09
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21 to 26
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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 6, 7-8, 9, 11, 12); 29 (Suppl 1, 1 to 6, 7-8, 9, 11, 12); 31 (1 to 6, 7-8, 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 6, 7-8, 9, 11, 12); 29 (Suppl 1, 1 to 6, 7-8, 9, 11, 12); 31 (1 to 6, 7-8, 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 : 18 (11, 12); 19 (1-6, 7-8, 9-12); 20 (1-6, 7-8, 9-12); 21 (1-6, 7-8, 9-12); 22 (1-6, 7-8, 9-12); 23 (1-6, 7-8, 9-12); 24 (1-6, 7-8, 9-12); 25 (1-6, 7-8, 9-12); 26 (1-6, 7-8, 9-12); 27 (1-6, 7-8, 9-11)
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