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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 4); 2 (1-2, 3, 4); 3 (1, 2, 3-4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1, 2-3, 4); 9 (1-2, 3, 4); 10 (1-2, 3-4); 11 (1-2); 12 (2 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 6); 17 (Suppl, 1 to 4, 5-6); 18 (1 to 6); 19 (1, 2)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 19
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Portico
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Preserved
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2026-04-02
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Preserved : 2008/2009: 1(1-4), 2009: 2(1-4), 2010: 3(1-4), 2011: 4(1-4), 2012: 5(1-3), 2013/2014: 6(1-4), 2014: 7(1-4), 2015: 8(1-4), 2016: 9(1-4), 2017/2018: 10(1-4), 2018: 11(1-2), 2019: 12(1-4), 2018/2019/2020: 13(1-4), 2021: 14(1-4), 2022: 15(1-4), 2023: 16(1-6), 2024: 17(1, S 1, 2-6), 2025: 18(1-6), 2025/2026: 19(1-2)
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LOCKSS Archive
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In Progress
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2026-04-06
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5, 12
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LOCKSS Archive
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Preserved
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2026-04-06
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6 to 10
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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 : 1 (2 to 4); 2 (1, 3, 4); 3 (1 to 3); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1, 2, 4); 9 (1, 3, 4); 11 (1-2); 12 (2 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 6); 17 (Suppl 1, 1 to 5)
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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 : 1 (2 to 4); 2 (1, 3, 4); 3 (1 to 3); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1, 2, 4); 9 (1, 3, 4); 11 (1-2); 12 (2 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 6); 17 (Suppl 1, 1 to 5)
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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 : 1 (2-4); 2 (1-2, 3, 4); 3 (1, 2, 3-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1, 2-3, 4); 9 (1-2, 3, 4); 10 (1-2, 3-4); 11 (1-2); 12 (2-4)
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Library of Congress
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Preserved
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2025-04-07
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3 (1 to 3-4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1, 2-3, 4); 9 (1-2, 3, 4); 10 (1-2, 3-4); 11 (1-2); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 6); 17 (S1, 1 to 5-6); 18 (1)
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