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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 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1, 2, 3-4); 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 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 12); 22 (1 to 9, 10-11, 12); 23 (1, 2, 3-4, 5-6, 7-8, 9-10, 11-12); 24 (1, 2, 4 to 12); 25 (1 to 12); 26 (1 to 3)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 26
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Portico
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Preserved
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2026-04-02
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Preserved : 2001: 1(1-4), 2002: 2(1-4), 2003: 3(1-4), 2004: 4(1-4), 2005: 5(1-4), 2006: 6(1-4), 2007: 7(1-4), 2008: 8(1-4), 2009: 9(1-4), 2010: 10(1-4), 2011: 11(1-4), 2012: 12(1-4), 2013: 13(1-4), 2014: 14(1-4), 2015: 15(1-4), 2016: 16(1-4), 2017: 17(1-3), 2018: 18(1-6), 2019: 19(1-6), 2019/2020: 20(1-6), 2021: 21(1-12), 2022: 22(1-12), 2023: 23(1-12), 2024: 24(1-11), 2025: 25(1-2, 5-12), 2026: 26(1-3)
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LOCKSS Archive
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In Progress
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2026-04-06
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12, 19
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LOCKSS Archive
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Preserved
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2026-04-06
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13 to 18
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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 : 2 (1 to 6); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 6); 19 (1 to 6); 21 (1 to 9, 11, 12); 22 (1-11, 2 to 9, 12); 23 (1, 2, 3-4, 5-6, 7-8, 9-1, 11-12); 24 (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 : 2 (1 to 6); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 6); 19 (1 to 6); 21 (1 to 9, 11, 12); 22 (1-11, 2 to 9, 12); 23 (1, 2, 3-4, 5-6, 7-8, 9-1, 11-12); 24 (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 : 1 (1, 2, 4); 2 (1-4); 3 (1, 3, 4); 4 (1-3); 5 (1-3); 6 (1); 7 (2-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (2-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-6); 19 (1-6)
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Library of Congress
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Preserved
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2025-04-07
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18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 12); 22 (1 to 10-11, 12); 23 (1 to 3-4, 5-6, 7-8, 9-10, 11-12); 24 (1 to 11)
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