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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (Suppl, 1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1)
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CLOCKSS Archive
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Preserved
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2026-03-30
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24 to 39
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Portico
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Preserved
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2026-04-02
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Preserved : 2011: 24(1-4), 2012: 25(1-4), 2013: 26(1-4), 2014: 27(1-4), 2015: 28(1-4), 2016: 29(1-4), 2017: 30(1-4), 2018: 31(1-4), 2019: 32(1-4), 2019/2020: 33(1-4), 2021: 34(1, S 1, 2-4), 2022: 35(1-4), 2023: 36(1-4), 2024: 37(1-4), 2025: 38(1-4), 2025/2026: 39(1-2)
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LOCKSS Archive
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In Progress
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2026-03-30
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25, 32
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LOCKSS Archive
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Preserved
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2026-03-30
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26 to 31
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Library of Congress
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Preserved
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2025-04-07
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31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (S1, 1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1)
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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 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (Suppl 1, 1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4)
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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 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (Suppl 1, 1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4)
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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 : 24 (2-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-3)
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