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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 6); 2 (1 to 6); 3 (1 to 7); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 10 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (3 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1, 2)
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Portico
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Preserved
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2026-04-02
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Preserved : 1999: 1(1, 3-4), 2000: 2(1-3), 2001: 3(2), 2002: 4(2-3), 2003: 5(1)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 13, 15 to 20
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 28
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Portico
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Preserved
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2026-04-02
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Preserved : 2005: 7(3, 6), 2006: 8(5-6), 2007: 9(4-5), 2008: 10(1-6), 2009: 11(1-6), 2010: 12(1-6), 2011: 13(1-6), 2012: 14(1, 3-5), 2013: 15(1-6), 2014: 16(1-6), 2015: 17(2-6), 2016: 18(1-6), 2017: 19(1-6), 2018: 20(1-6), 2019: 21(1-6), 2020: 22(1-6), 2021: 23(1-6), 2022: 24(1-6), 2023: 25(1-6), 2024: 26(1-6), 2025: 27(1-6), 2026: 28(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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14, 21
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Library of Congress
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Preserved
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2025-04-07
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19 (5, 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 3, 5, 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 5)
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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 6); 2 (1 to 6); 3 (Suppl 1, 1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6)
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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 6); 2 (1 to 6); 3 (Suppl 1, 1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6)
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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 : 16 (2 to 6)
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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 : 16 (2 to 6)
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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 (3); 4 (4-6); 5 (2-6); 6 (1-5); 7 (2-6); 8 (1, 3, 4, 6); 9 (1, 3-6); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-6); 14 (1-4, 6); 15 (1-6); 16 (1-3, 5); 17 (1, 3-6); 18 (1-3, 5); 19 (1-6); 20 (1, 3, 4, 6); 21 (1-5)
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