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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1)
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LOCKSS Archive
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Preserved
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2026-04-06
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23 to 29
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CLOCKSS Archive
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In Progress
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2026-04-06
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23 to 31
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Portico
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Preserved
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2026-04-09
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Preserved : 2018: 23(1-6), 2019: 24(1-6), 2020: 25(1-6), 2021: 26(1-6), 2022: 27(1-6), 2023: 28(1-6), 2024: 29(1-6), 2025: 30(1-6), 2026: 31(1)
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LOCKSS Archive
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In Progress
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2026-04-06
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30, 31
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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 : ; 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6)
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Library of Congress
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Preserved
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2025-04-07
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16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 4-5, 6); 20 (1-2, 3 to 6); 21 (1, 2-3, 4 to 6); 22 (1-2, 3-4, 5-6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 5); 30 (1)
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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 : 23 (2-6); 24 (1-4)
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