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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 3); 2 (1 to 3); 3 (1 to 3); 4 (1 to 3); 5 (1, 2-3, 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 5); 14 (1 to 6); 15 (1 to 8); 16 (1 to 8); 17 (1 to 8); 18 (1 to 12); 19 (1 to 12); 20 (1 to 4)
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Portico
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Preserved
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2026-04-02
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Preserved : 2007: 1(1-3), 2008: 2(1-3), 2009: 3(1-3), 2010: 4(1-3), 2011: 5(1-4), 2012: 6(1-3), 2013: 7(1-3), 2014: 8(1-4), 2015: 9(2-4), 2016: 10(1-4), 2017: 11(1-4), 2018: 12(1-4), 2019: 13(1-5), 2018/2019: 14(1-6)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 20
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LOCKSS Archive
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In Progress
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2026-04-06
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6, 13
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LOCKSS Archive
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Preserved
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2026-04-06
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7 to 12
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Portico
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Preserved
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2026-04-02
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Preserved : 2021: 15(1-8), 2022: 16(1-8), 2023: 17(1-8), 2024: 18(1-11), 2025: 19(1-3, 5-12), 2026: 20(1-4)
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Library of Congress
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Preserved
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2025-04-07
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12 (2 to 4); 13 (1 to 5); 14 (1 to 6); 15 (1 to 8); 16 (1 to 8); 17 (1 to 8); 18 (1 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 (1 to 4); 2 (1 to 3); 3 (1 to 3); 4 (1 to 3); 5 (1, 2, 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 5); 14 (1 to 6); 15 (1 to 8); 16 (1 to 8); 17 (1 to 8); 18 (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 : 1 (1 to 4); 2 (1 to 3); 3 (1 to 3); 4 (1 to 3); 5 (1, 2, 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 5); 14 (1 to 6); 15 (1 to 8); 16 (1 to 8); 17 (1 to 8); 18 (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 : 2 (2, 3); 3 (1-3); 4 (1-3); 5 (1, 2-3, 4); 6 (1-4); 7 (1, 3); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-5)
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